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Finding the Third Proportional to 87,169,944 and 191,343,882

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Solution

The third proportional to 87,169,944 and 191,343,882 is: 420,012,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,169,944 : 191,343,882 = 191,343,882 : x
  2. Step 2: Convert to fraction form
    87,169,944/191,343,882 = 191,343,882/x
  3. Step 3: Cross multiply
    87,169,944x = 191,343,882 × 191,343,882
  4. Step 4: Simplify right side
    87,169,944x = 36,612,481,178,829,920
  5. Step 5: Solve for x
    x = 36,612,481,178,829,920/87,169,944
  6. Step 6: Final answer
    x = 420,012,672.93

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.