An in place machine has an equivalent annual worth of $$-60000$ for each year of its maximum remaining useful life of two years. A suitable replacement is determined to have equivalent annual worth values of $$-105000,$$$-75000,$ and $$-90000$ per year if kept for $1,2,$ or $3$ years, respectively. When should the company replace the machine, if it uses a fixed $3-$year planning horizon? Use an interest rate of $17\mathrm{.}255609824\%$ per year compounded semiannualy.