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Finding the Third Proportional to 160,991,780 and 251,053,610

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Solution

The third proportional to 160,991,780 and 251,053,610 is: 391,497,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,991,780 : 251,053,610 = 251,053,610 : x
  2. Step 2: Convert to fraction form
    160,991,780/251,053,610 = 251,053,610/x
  3. Step 3: Cross multiply
    160,991,780x = 251,053,610 × 251,053,610
  4. Step 4: Simplify right side
    160,991,780x = 63,027,915,094,032,096
  5. Step 5: Solve for x
    x = 63,027,915,094,032,096/160,991,780
  6. Step 6: Final answer
    x = 391,497,721.77

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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.