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Finding the Third Proportional to 87,986.50 and 141,663.75

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Solution

The third proportional to 87,986.50 and 141,663.75 is: 228,087.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,986.50 : 141,663.75 = 141,663.75 : x
  2. Step 2: Convert to fraction form
    87,986.50/141,663.75 = 141,663.75/x
  3. Step 3: Cross multiply
    87,986.50x = 141,663.75 × 141,663.75
  4. Step 4: Simplify right side
    87,986.50x = 20,068,618,064.06
  5. Step 5: Solve for x
    x = 20,068,618,064.06/87,986.50
  6. Step 6: Final answer
    x = 228,087.47

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.