The risk$-$free rate is $3\%$ and the expected market rate of return is $10\%.$ What is the required rate of return of the following three$-$stock portfolio? $($Calculate the portfolio beta first!$)$

$14\mathrm{.}62\%$

$\backslash$table$[[$Stock$,$Amount Invested,Beta$],[$Visa$,$$$200,000,1\mathrm{.}5],[$Nike$,250,000,2\mathrm{.}0],[$Boeing$,50,000,0\mathrm{.}6]]$