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Finding the Fourth Proportional to 73,839.92, 101,898.96 and 40,305.92

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Solution

The fourth proportional to 73,839.92, 101,898.96 and 40,305.92 is: 55,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,839.92 : 101,898.96 = 40,305.92 : x
  2. Step 2: Convert to fraction form
    73,839.92/101,898.96 = 40,305.92/x
  3. Step 3: Cross multiply
    73,839.92x = 101,898.96 × 40,305.92
  4. Step 4: Simplify right side
    73,839.92x = 4,107,131,329.84
  5. Step 5: Solve for x
    x = 4,107,131,329.84/73,839.92
  6. Step 6: Final answer
    x = 55,622.10

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Why These Related Problems?

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