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Finding the Third Proportional to 71,466 and 155,487

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Solution

The third proportional to 71,466 and 155,487 is: 338,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,466 : 155,487 = 155,487 : x
  2. Step 2: Convert to fraction form
    71,466/155,487 = 155,487/x
  3. Step 3: Cross multiply
    71,466x = 155,487 × 155,487
  4. Step 4: Simplify right side
    71,466x = 24,176,207,169
  5. Step 5: Solve for x
    x = 24,176,207,169/71,466
  6. Step 6: Final answer
    x = 338,289.64

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.