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Finding the Third Proportional to 87,169.50 and 190,917

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Solution

The third proportional to 87,169.50 and 190,917 is: 418,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,169.50 : 190,917 = 190,917 : x
  2. Step 2: Convert to fraction form
    87,169.50/190,917 = 190,917/x
  3. Step 3: Cross multiply
    87,169.50x = 190,917 × 190,917
  4. Step 4: Simplify right side
    87,169.50x = 36,449,300,889
  5. Step 5: Solve for x
    x = 36,449,300,889/87,169.50
  6. Step 6: Final answer
    x = 418,142.82

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.