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Finding the Fourth Proportional to 141,781.47, 212,691.65 and 62,893.95

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Solution

The fourth proportional to 141,781.47, 212,691.65 and 62,893.95 is: 94,349.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,781.47 : 212,691.65 = 62,893.95 : x
  2. Step 2: Convert to fraction form
    141,781.47/212,691.65 = 62,893.95/x
  3. Step 3: Cross multiply
    141,781.47x = 212,691.65 × 62,893.95
  4. Step 4: Simplify right side
    141,781.47x = 13,377,017,686.05
  5. Step 5: Solve for x
    x = 13,377,017,686.05/141,781.47
  6. Step 6: Final answer
    x = 94,349.55

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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.