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Finding the Third Proportional to 87,421,651 and 190,664,582

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Solution

The third proportional to 87,421,651 and 190,664,582 is: 415,835,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,421,651 : 190,664,582 = 190,664,582 : x
  2. Step 2: Convert to fraction form
    87,421,651/190,664,582 = 190,664,582/x
  3. Step 3: Cross multiply
    87,421,651x = 190,664,582 × 190,664,582
  4. Step 4: Simplify right side
    87,421,651x = 36,352,982,829,234,720
  5. Step 5: Solve for x
    x = 36,352,982,829,234,720/87,421,651
  6. Step 6: Final answer
    x = 415,835,006.70

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.