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Finding the Third Proportional to 75,279.38 and 112,929.19

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Solution

The third proportional to 75,279.38 and 112,929.19 is: 169,408.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,279.38 : 112,929.19 = 112,929.19 : x
  2. Step 2: Convert to fraction form
    75,279.38/112,929.19 = 112,929.19/x
  3. Step 3: Cross multiply
    75,279.38x = 112,929.19 × 112,929.19
  4. Step 4: Simplify right side
    75,279.38x = 12,753,001,389.41
  5. Step 5: Solve for x
    x = 12,753,001,389.41/75,279.38
  6. Step 6: Final answer
    x = 169,408.97

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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.