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Finding the Third Proportional to 177,872 and 419,873

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Solution

The third proportional to 177,872 and 419,873 is: 991,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,872 : 419,873 = 419,873 : x
  2. Step 2: Convert to fraction form
    177,872/419,873 = 419,873/x
  3. Step 3: Cross multiply
    177,872x = 419,873 × 419,873
  4. Step 4: Simplify right side
    177,872x = 176,293,336,129
  5. Step 5: Solve for x
    x = 176,293,336,129/177,872
  6. Step 6: Final answer
    x = 991,124.72

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.