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Finding the Third Proportional to 62,931.78 and 136,819.92

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Solution

The third proportional to 62,931.78 and 136,819.92 is: 297,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,931.78 : 136,819.92 = 136,819.92 : x
  2. Step 2: Convert to fraction form
    62,931.78/136,819.92 = 136,819.92/x
  3. Step 3: Cross multiply
    62,931.78x = 136,819.92 × 136,819.92
  4. Step 4: Simplify right side
    62,931.78x = 18,719,689,418.52
  5. Step 5: Solve for x
    x = 18,719,689,418.52/62,931.78
  6. Step 6: Final answer
    x = 297,460.04

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.