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Finding the Fourth Proportional to 88,363.20, 132,496.20 and 38,434.80

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Solution

The fourth proportional to 88,363.20, 132,496.20 and 38,434.80 is: 57,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,363.20 : 132,496.20 = 38,434.80 : x
  2. Step 2: Convert to fraction form
    88,363.20/132,496.20 = 38,434.80/x
  3. Step 3: Cross multiply
    88,363.20x = 132,496.20 × 38,434.80
  4. Step 4: Simplify right side
    88,363.20x = 5,092,464,947.76
  5. Step 5: Solve for x
    x = 5,092,464,947.76/88,363.20
  6. Step 6: Final answer
    x = 57,631.06

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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.