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Finding the Third Proportional to 87,307.25 and 129,324.38

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Solution

The third proportional to 87,307.25 and 129,324.38 is: 191,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,307.25 : 129,324.38 = 129,324.38 : x
  2. Step 2: Convert to fraction form
    87,307.25/129,324.38 = 129,324.38/x
  3. Step 3: Cross multiply
    87,307.25x = 129,324.38 × 129,324.38
  4. Step 4: Simplify right side
    87,307.25x = 16,724,793,969.14
  5. Step 5: Solve for x
    x = 16,724,793,969.14/87,307.25
  6. Step 6: Final answer
    x = 191,562.49

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.