$\backslash$table$[[$Part$,B,D_f,{}^{\text{'}},C^{\text{'}},,$Foundation type$],[$a$.,4ft,3ft,25,600l\frac{b}{f}{t}^2,110l\frac{b}{f}{t}^3,$Continuous$],[$b$.,2m,1m,30,0,17k\frac{N}{m^3},$Continuous$],[$c$.,3m,2m,30,0,16\mathrm{.}5k\frac{N}{m^3},$Square$]]$

$3\mathrm{.}1$ d$)$ What is the ultimate bearing capacity of $3\mathrm{.}1$a using Pauker's method, and Bell's equation $($From section $1$ lecture $5).$