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Finding the Fourth Proportional to 74,752.92, 112,126.92 and 30,366.52

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Solution

The fourth proportional to 74,752.92, 112,126.92 and 30,366.52 is: 45,548.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,752.92 : 112,126.92 = 30,366.52 : x
  2. Step 2: Convert to fraction form
    74,752.92/112,126.92 = 30,366.52/x
  3. Step 3: Cross multiply
    74,752.92x = 112,126.92 × 30,366.52
  4. Step 4: Simplify right side
    74,752.92x = 3,404,904,358.72
  5. Step 5: Solve for x
    x = 3,404,904,358.72/74,752.92
  6. Step 6: Final answer
    x = 45,548.78

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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.