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Finding the Third Proportional to 87,453,569 and 191,381,890

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Solution

The third proportional to 87,453,569 and 191,381,890 is: 418,816,844.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,453,569 : 191,381,890 = 191,381,890 : x
  2. Step 2: Convert to fraction form
    87,453,569/191,381,890 = 191,381,890/x
  3. Step 3: Cross multiply
    87,453,569x = 191,381,890 × 191,381,890
  4. Step 4: Simplify right side
    87,453,569x = 36,627,027,819,972,096
  5. Step 5: Solve for x
    x = 36,627,027,819,972,096/87,453,569
  6. Step 6: Final answer
    x = 418,816,844.63

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.