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Finding the Third Proportional to 160,991,810 and 251,053,655

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Solution

The third proportional to 160,991,810 and 251,053,655 is: 391,497,789.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,991,810 : 251,053,655 = 251,053,655 : x
  2. Step 2: Convert to fraction form
    160,991,810/251,053,655 = 251,053,655/x
  3. Step 3: Cross multiply
    160,991,810x = 251,053,655 × 251,053,655
  4. Step 4: Simplify right side
    160,991,810x = 63,027,937,688,859,024
  5. Step 5: Solve for x
    x = 63,027,937,688,859,024/160,991,810
  6. Step 6: Final answer
    x = 391,497,789.17

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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.