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Finding the Third Proportional to 81,614 and 170,610

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Solution

The third proportional to 81,614 and 170,610 is: 356,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,614 : 170,610 = 170,610 : x
  2. Step 2: Convert to fraction form
    81,614/170,610 = 170,610/x
  3. Step 3: Cross multiply
    81,614x = 170,610 × 170,610
  4. Step 4: Simplify right side
    81,614x = 29,107,772,100
  5. Step 5: Solve for x
    x = 29,107,772,100/81,614
  6. Step 6: Final answer
    x = 356,651.70

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.