ABC, a mutual fund manager, has a $40 million portfolio with a beta of 1.50. The risk-free rate is 4.00%, and the market risk premium is 5.00%. ABC expects to receive an additional $60 million, which she plans to invest in additional stocks. After investing the additional funds, she wants the fund's required and expected return to be 13.00%. What must the average beta of the new stocks be to achieve the target required rate of return?