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Finding the Third Proportional to 177,936 and 391,522.50

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Solution

The third proportional to 177,936 and 391,522.50 is: 861,488.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,936 : 391,522.50 = 391,522.50 : x
  2. Step 2: Convert to fraction form
    177,936/391,522.50 = 391,522.50/x
  3. Step 3: Cross multiply
    177,936x = 391,522.50 × 391,522.50
  4. Step 4: Simplify right side
    177,936x = 153,289,868,006.25
  5. Step 5: Solve for x
    x = 153,289,868,006.25/177,936
  6. Step 6: Final answer
    x = 861,488.78

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.