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Finding the Third Proportional to 87,922 and 129,951

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Solution

The third proportional to 87,922 and 129,951 is: 192,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,922 : 129,951 = 129,951 : x
  2. Step 2: Convert to fraction form
    87,922/129,951 = 129,951/x
  3. Step 3: Cross multiply
    87,922x = 129,951 × 129,951
  4. Step 4: Simplify right side
    87,922x = 16,887,262,401
  5. Step 5: Solve for x
    x = 16,887,262,401/87,922
  6. Step 6: Final answer
    x = 192,070.95

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.