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Finding the Third Proportional to 81,816.75 and 125,101.13

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Solution

The third proportional to 81,816.75 and 125,101.13 is: 191,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,816.75 : 125,101.13 = 125,101.13 : x
  2. Step 2: Convert to fraction form
    81,816.75/125,101.13 = 125,101.13/x
  3. Step 3: Cross multiply
    81,816.75x = 125,101.13 × 125,101.13
  4. Step 4: Simplify right side
    81,816.75x = 15,650,291,476.27
  5. Step 5: Solve for x
    x = 15,650,291,476.27/81,816.75
  6. Step 6: Final answer
    x = 191,284.69

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.