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Finding the Fourth Proportional to 225,673.12, 338,454 and 92,591.20

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Solution

The fourth proportional to 225,673.12, 338,454 and 92,591.20 is: 138,863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,673.12 : 338,454 = 92,591.20 : x
  2. Step 2: Convert to fraction form
    225,673.12/338,454 = 92,591.20/x
  3. Step 3: Cross multiply
    225,673.12x = 338,454 × 92,591.20
  4. Step 4: Simplify right side
    225,673.12x = 31,337,862,004.80
  5. Step 5: Solve for x
    x = 31,337,862,004.80/225,673.12
  6. Step 6: Final answer
    x = 138,863.96

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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.