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Finding the Third Proportional to 87,856 and 189,536

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Solution

The third proportional to 87,856 and 189,536 is: 408,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,856 : 189,536 = 189,536 : x
  2. Step 2: Convert to fraction form
    87,856/189,536 = 189,536/x
  3. Step 3: Cross multiply
    87,856x = 189,536 × 189,536
  4. Step 4: Simplify right side
    87,856x = 35,923,895,296
  5. Step 5: Solve for x
    x = 35,923,895,296/87,856
  6. Step 6: Final answer
    x = 408,895.18

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.