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Finding the Third Proportional to 87,772 and 125,427

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Solution

The third proportional to 87,772 and 125,427 is: 179,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,772 : 125,427 = 125,427 : x
  2. Step 2: Convert to fraction form
    87,772/125,427 = 125,427/x
  3. Step 3: Cross multiply
    87,772x = 125,427 × 125,427
  4. Step 4: Simplify right side
    87,772x = 15,731,932,329
  5. Step 5: Solve for x
    x = 15,731,932,329/87,772
  6. Step 6: Final answer
    x = 179,236.34

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.