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Finding the Third Proportional to 81,949.88 and 126,564.38

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Solution

The third proportional to 81,949.88 and 126,564.38 is: 195,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,949.88 : 126,564.38 = 126,564.38 : x
  2. Step 2: Convert to fraction form
    81,949.88/126,564.38 = 126,564.38/x
  3. Step 3: Cross multiply
    81,949.88x = 126,564.38 × 126,564.38
  4. Step 4: Simplify right side
    81,949.88x = 16,018,541,019.14
  5. Step 5: Solve for x
    x = 16,018,541,019.14/81,949.88
  6. Step 6: Final answer
    x = 195,467.55

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.