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Finding the Fourth Proportional to 66,335.92, 99,542.08 and 35,171.12

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Solution

The fourth proportional to 66,335.92, 99,542.08 and 35,171.12 is: 52,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,335.92 : 99,542.08 = 35,171.12 : x
  2. Step 2: Convert to fraction form
    66,335.92/99,542.08 = 35,171.12/x
  3. Step 3: Cross multiply
    66,335.92x = 99,542.08 × 35,171.12
  4. Step 4: Simplify right side
    66,335.92x = 3,501,006,440.73
  5. Step 5: Solve for x
    x = 3,501,006,440.73/66,335.92
  6. Step 6: Final answer
    x = 52,776.93

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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.