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Finding the Third Proportional to 160,991,978 and 251,053,910

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Solution

The third proportional to 160,991,978 and 251,053,910 is: 391,498,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,991,978 : 251,053,910 = 251,053,910 : x
  2. Step 2: Convert to fraction form
    160,991,978/251,053,910 = 251,053,910/x
  3. Step 3: Cross multiply
    160,991,978x = 251,053,910 × 251,053,910
  4. Step 4: Simplify right side
    160,991,978x = 63,028,065,726,288,096
  5. Step 5: Solve for x
    x = 63,028,065,726,288,096/160,991,978
  6. Step 6: Final answer
    x = 391,498,175.93

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.