Finding the Fourth Proportional to 124,265.46, 186,213.86 and 91,272.18
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Solution
The fourth proportional to 124,265.46, 186,213.86 and 91,272.18 is: 136,772.88
Step by Step Solution
- Step 1: Write the proportion equation
124,265.46 : 186,213.86 = 91,272.18 : x - Step 2: Convert to fraction form
124,265.46/186,213.86 = 91,272.18/x - Step 3: Cross multiply
124,265.46x = 186,213.86 × 91,272.18 - Step 4: Simplify right side
124,265.46x = 16,996,144,948.41 - Step 5: Solve for x
x = 16,996,144,948.41/124,265.46 - Step 6: Final answer
x = 136,772.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.