Answer
$P=92.81psia$
Work Step by Step
$\rho=1.03*62.4\frac{lbm}{ft^3}=64.27\frac{lbm}{ft^3}$
$P=P_{atm}+\rho*g*h$
$P=14.7psia+(64.27\frac{lbm}{ft^3})*(32.2\frac{ft}{s^2})*(175ft)*(\frac{1lbf}{32.2\frac{lbm*ft}{s^2}})*(\frac{ft^2}{144in^2})$
$P=14.7psia+78.11psia=92.81psia$
