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Finding the Fourth Proportional to 322,997.31, 445,731.93 and 179,757.31

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Solution

The fourth proportional to 322,997.31, 445,731.93 and 179,757.31 is: 248,062.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,997.31 : 445,731.93 = 179,757.31 : x
  2. Step 2: Convert to fraction form
    322,997.31/445,731.93 = 179,757.31/x
  3. Step 3: Cross multiply
    322,997.31x = 445,731.93 × 179,757.31
  4. Step 4: Simplify right side
    322,997.31x = 80,123,572,717.91
  5. Step 5: Solve for x
    x = 80,123,572,717.91/322,997.31
  6. Step 6: Final answer
    x = 248,062.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.