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Finding the Third Proportional to 87,667 and 192,020

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Solution

The third proportional to 87,667 and 192,020 is: 420,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,667 : 192,020 = 192,020 : x
  2. Step 2: Convert to fraction form
    87,667/192,020 = 192,020/x
  3. Step 3: Cross multiply
    87,667x = 192,020 × 192,020
  4. Step 4: Simplify right side
    87,667x = 36,871,680,400
  5. Step 5: Solve for x
    x = 36,871,680,400/87,667
  6. Step 6: Final answer
    x = 420,587.91

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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.