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Finding the Third Proportional to 131,311.13 and 169,998.75

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Solution

The third proportional to 131,311.13 and 169,998.75 is: 220,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,311.13 : 169,998.75 = 169,998.75 : x
  2. Step 2: Convert to fraction form
    131,311.13/169,998.75 = 169,998.75/x
  3. Step 3: Cross multiply
    131,311.13x = 169,998.75 × 169,998.75
  4. Step 4: Simplify right side
    131,311.13x = 28,899,575,001.56
  5. Step 5: Solve for x
    x = 28,899,575,001.56/131,311.13
  6. Step 6: Final answer
    x = 220,084.74

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.