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Finding the Third Proportional to 87,316 and 186,079

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Solution

The third proportional to 87,316 and 186,079 is: 396,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,316 : 186,079 = 186,079 : x
  2. Step 2: Convert to fraction form
    87,316/186,079 = 186,079/x
  3. Step 3: Cross multiply
    87,316x = 186,079 × 186,079
  4. Step 4: Simplify right side
    87,316x = 34,625,394,241
  5. Step 5: Solve for x
    x = 34,625,394,241/87,316
  6. Step 6: Final answer
    x = 396,552.68

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.