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Finding the Third Proportional to 87,630.75 and 124,884

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Solution

The third proportional to 87,630.75 and 124,884 is: 177,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,630.75 : 124,884 = 124,884 : x
  2. Step 2: Convert to fraction form
    87,630.75/124,884 = 124,884/x
  3. Step 3: Cross multiply
    87,630.75x = 124,884 × 124,884
  4. Step 4: Simplify right side
    87,630.75x = 15,596,013,456
  5. Step 5: Solve for x
    x = 15,596,013,456/87,630.75
  6. Step 6: Final answer
    x = 177,974.21

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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.