The correct answer is: $90.718474\ \text{kg}$
Explanation
To convert pounds to kilograms use the factor $1\ \text{lb}=0.45359237\ \text{kg}$. Multiplying $200\ \text{lb}$ by that factor gives the mass in kilograms.
Steps:
- First step: $$\text{mass}_\text{kg}=\text{mass}_\text{lb}\times0.45359237$$
- Second step (plug in): $$\text{mass}_\text{kg}=200\times0.45359237=90.718474$$
- Final step (rounding to two decimals): $$90.72\ \text{kg}$$
Therefore, $200\ \text{lb}\approx90.72\ \text{kg}$ (exactly $90.718474\ \text{kg}$).