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Finding the Third Proportional to 76,470.75 and 112,449

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Solution

The third proportional to 76,470.75 and 112,449 is: 165,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,470.75 : 112,449 = 112,449 : x
  2. Step 2: Convert to fraction form
    76,470.75/112,449 = 112,449/x
  3. Step 3: Cross multiply
    76,470.75x = 112,449 × 112,449
  4. Step 4: Simplify right side
    76,470.75x = 12,644,777,601
  5. Step 5: Solve for x
    x = 12,644,777,601/76,470.75
  6. Step 6: Final answer
    x = 165,354.43

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.