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Finding the Third Proportional to 87,139.13 and 134,011.13

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Solution

The third proportional to 87,139.13 and 134,011.13 is: 206,095.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,139.13 : 134,011.13 = 134,011.13 : x
  2. Step 2: Convert to fraction form
    87,139.13/134,011.13 = 134,011.13/x
  3. Step 3: Cross multiply
    87,139.13x = 134,011.13 × 134,011.13
  4. Step 4: Simplify right side
    87,139.13x = 17,958,981,623.77
  5. Step 5: Solve for x
    x = 17,958,981,623.77/87,139.13
  6. Step 6: Final answer
    x = 206,095.50

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.