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Finding the Fourth Proportional to 74,422.89, 102,712.55 and 42,591.11

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Solution

The fourth proportional to 74,422.89, 102,712.55 and 42,591.11 is: 58,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.89 : 102,712.55 = 42,591.11 : x
  2. Step 2: Convert to fraction form
    74,422.89/102,712.55 = 42,591.11/x
  3. Step 3: Cross multiply
    74,422.89x = 102,712.55 × 42,591.11
  4. Step 4: Simplify right side
    74,422.89x = 4,374,640,788.91
  5. Step 5: Solve for x
    x = 4,374,640,788.91/74,422.89
  6. Step 6: Final answer
    x = 58,780.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.