A mixture of C$3,$ n$-$C$4,$ and n$-$C$5$ system is brought to equilibrium at $180F$ and $200$ psia as shown in the following table:

$\backslash$table$[[$Component$,\backslash$table$[[$Composition$],[($mole percent$)]]],[$C$3,52\mathrm{.}00],[n-C4,32\mathrm{.}00],[n-C5,16\mathrm{.}00],[$Total$,100]]$

Calculate the convergence pressure, knowing that this mixture has the same convergence pressure as the hydrocarbon mixture with the following properties at $180F$ :

The molecular weight of $C7+=146l\frac{b}{l}b$ mole