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Finding the Fourth Proportional to 261,755.61, 392,634.92 and 93,282.41

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Solution

The fourth proportional to 261,755.61, 392,634.92 and 93,282.41 is: 139,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,755.61 : 392,634.92 = 93,282.41 : x
  2. Step 2: Convert to fraction form
    261,755.61/392,634.92 = 93,282.41/x
  3. Step 3: Cross multiply
    261,755.61x = 392,634.92 × 93,282.41
  4. Step 4: Simplify right side
    261,755.61x = 36,625,931,587.76
  5. Step 5: Solve for x
    x = 36,625,931,587.76/261,755.61
  6. Step 6: Final answer
    x = 139,924.15

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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.