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Finding the Third Proportional to 81,586,134 and 126,515,088

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Solution

The third proportional to 81,586,134 and 126,515,088 is: 196,186,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586,134 : 126,515,088 = 126,515,088 : x
  2. Step 2: Convert to fraction form
    81,586,134/126,515,088 = 126,515,088/x
  3. Step 3: Cross multiply
    81,586,134x = 126,515,088 × 126,515,088
  4. Step 4: Simplify right side
    81,586,134x = 16,006,067,491,647,744
  5. Step 5: Solve for x
    x = 16,006,067,491,647,744/81,586,134
  6. Step 6: Final answer
    x = 196,186,125.10

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.