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Finding the Fourth Proportional to 72,487.77, 108,742.14 and 22,572.33

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Solution

The fourth proportional to 72,487.77, 108,742.14 and 22,572.33 is: 33,861.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,487.77 : 108,742.14 = 22,572.33 : x
  2. Step 2: Convert to fraction form
    72,487.77/108,742.14 = 22,572.33/x
  3. Step 3: Cross multiply
    72,487.77x = 108,742.14 × 22,572.33
  4. Step 4: Simplify right side
    72,487.77x = 2,454,563,468.99
  5. Step 5: Solve for x
    x = 2,454,563,468.99/72,487.77
  6. Step 6: Final answer
    x = 33,861.76

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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.