A. What is the weight of the risky segment of the entire investment portfolio? b. What is the ratio of the GSM investment to 1. The risky segment of the portfolio, and the global portfolio? c. Break down the portfolio in terms of its various elements (risk-free and risky assets).

$\text{Risky segment} = \$113,000 + \$96,600 = \$209,600$

$\text{Weight of risky segment} = \frac{\$209,600}{\$600,000} \approx 0.3493$ The weight of the risky segment is $\boxed{0.3493}$ or $\boxed{34.93\%}$.

b) What is the ratio of the GSM investment to 1. The risky segment of the portfolio, and the global portfolio?
This asks for two ratios: GSM investment to the risky segment, and GSM investment to the global (total) portfolio.

$\text{Ratio (GSM to Risky Segment)} = \frac{\$113,000}{\$209,600} \approx 0.5391$

$\text{Ratio (GSM to Global Portfolio)} = \frac{\$113,000}{\$600,000} \approx 0.1883$ The ratio of GSM investment to the risky segment is $\boxed{0.5391}$.
The ratio of GSM investment to the global portfolio is $\boxed{0.1883}$.

c) Break down the portfolio in terms of its various elements (risk-free and risky assets).

GSM stock = \113,000$Cement Factory holding =$$96,600$Total risky assets =$$209,600$

$\text{Risk-free asset} = \$600,000 - \$209,600 = \$390,400$

• Risk-free assets: \boxed{\390,400}$
• Risky assets:
  • GSM stock: \boxed{\113,000}$
  • Cement Factory holding: \boxed{\96,600}$
  • Total risky assets: \boxed{\209,600}$
• Total portfolio: \boxed{\600,000}$