The management of Winstead Corporation is considering the following three investment projects $($Ignore income taxes.$)$: Project QProject RProject SInvestment required$ $71,600$$ $113,600$$ $210,000$Present value of cash inflows$ $78,076$$ $130,816$$ $230,380$ The only cash outflows are the initial investments in the projects. Required:Rank the investment projects using the project profitability index.