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Finding the Fourth Proportional to 74,737.80, 112,107 and 22,147.68

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Solution

The fourth proportional to 74,737.80, 112,107 and 22,147.68 is: 33,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,737.80 : 112,107 = 22,147.68 : x
  2. Step 2: Convert to fraction form
    74,737.80/112,107 = 22,147.68/x
  3. Step 3: Cross multiply
    74,737.80x = 112,107 × 22,147.68
  4. Step 4: Simplify right side
    74,737.80x = 2,482,909,961.76
  5. Step 5: Solve for x
    x = 2,482,909,961.76/74,737.80
  6. Step 6: Final answer
    x = 33,221.61

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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.