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Finding the Third Proportional to 87,540.75 and 131,311.13

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Solution

The third proportional to 87,540.75 and 131,311.13 is: 196,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540.75 : 131,311.13 = 131,311.13 : x
  2. Step 2: Convert to fraction form
    87,540.75/131,311.13 = 131,311.13/x
  3. Step 3: Cross multiply
    87,540.75x = 131,311.13 × 131,311.13
  4. Step 4: Simplify right side
    87,540.75x = 17,242,611,548.77
  5. Step 5: Solve for x
    x = 17,242,611,548.77/87,540.75
  6. Step 6: Final answer
    x = 196,966.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.