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Finding the Third Proportional to 71,375 and 96,143

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Solution

The third proportional to 71,375 and 96,143 is: 129,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,375 : 96,143 = 96,143 : x
  2. Step 2: Convert to fraction form
    71,375/96,143 = 96,143/x
  3. Step 3: Cross multiply
    71,375x = 96,143 × 96,143
  4. Step 4: Simplify right side
    71,375x = 9,243,476,449
  5. Step 5: Solve for x
    x = 9,243,476,449/71,375
  6. Step 6: Final answer
    x = 129,505.80

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.