SAT Question ec787383: Ratios Rates Proportional Relationships And Units answer and explanation with Desmos solution

It's given that $1$ furlong = $220$ yards and $1$ yard = $3$ feet . It follows that a distance of $61$ furlongs is equivalent to $\left(61\text{furlongs}\right)\left(\frac{220\text{yards}}{1\text{furlong}}\right)\left(\frac{3\text{feet}}{1\text{yard}}\right)$, or $40,260$ feet.