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Finding the Fourth Proportional to 88,232.80, 132,422.10 and 40,920.70

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Solution

The fourth proportional to 88,232.80, 132,422.10 and 40,920.70 is: 61,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,232.80 : 132,422.10 = 40,920.70 : x
  2. Step 2: Convert to fraction form
    88,232.80/132,422.10 = 40,920.70/x
  3. Step 3: Cross multiply
    88,232.80x = 132,422.10 × 40,920.70
  4. Step 4: Simplify right side
    88,232.80x = 5,418,805,027.47
  5. Step 5: Solve for x
    x = 5,418,805,027.47/88,232.80
  6. Step 6: Final answer
    x = 61,414.86

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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.