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Finding the Third Proportional to 87,512 and 192,518

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Solution

The third proportional to 87,512 and 192,518 is: 423,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,512 : 192,518 = 192,518 : x
  2. Step 2: Convert to fraction form
    87,512/192,518 = 192,518/x
  3. Step 3: Cross multiply
    87,512x = 192,518 × 192,518
  4. Step 4: Simplify right side
    87,512x = 37,063,180,324
  5. Step 5: Solve for x
    x = 37,063,180,324/87,512
  6. Step 6: Final answer
    x = 423,521.12

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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.