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Finding the Fourth Proportional to 74,874.53, 112,327.91 and 21,566.14

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Solution

The fourth proportional to 74,874.53, 112,327.91 and 21,566.14 is: 32,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,874.53 : 112,327.91 = 21,566.14 : x
  2. Step 2: Convert to fraction form
    74,874.53/112,327.91 = 21,566.14/x
  3. Step 3: Cross multiply
    74,874.53x = 112,327.91 × 21,566.14
  4. Step 4: Simplify right side
    74,874.53x = 2,422,479,432.97
  5. Step 5: Solve for x
    x = 2,422,479,432.97/74,874.53
  6. Step 6: Final answer
    x = 32,353.85

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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.