The two solutions of the equation $x^2+bx+48=0$ are in the ratio of 3 to 1 for some values of $b$. What is the largest possible value of $b$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The two solutions of the equation $x^2+bx+48=0$ are in the ratio of 3 to 1 for some values of $b$. What is the largest possible value of $b$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
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The two solutions of the equation $x^2+bx+48=0$ are in the ratio of 3 to 1 for some values of $b$. What is the largest possible value of $b$?
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