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Finding the Third Proportional to 107,711 and 178,892

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Solution

The third proportional to 107,711 and 178,892 is: 297,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,711 : 178,892 = 178,892 : x
  2. Step 2: Convert to fraction form
    107,711/178,892 = 178,892/x
  3. Step 3: Cross multiply
    107,711x = 178,892 × 178,892
  4. Step 4: Simplify right side
    107,711x = 32,002,347,664
  5. Step 5: Solve for x
    x = 32,002,347,664/107,711
  6. Step 6: Final answer
    x = 297,113.09

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.