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Finding the Fourth Proportional to 251,950.56, 347,691.73 and 138,773.31

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Solution

The fourth proportional to 251,950.56, 347,691.73 and 138,773.31 is: 191,507.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,950.56 : 347,691.73 = 138,773.31 : x
  2. Step 2: Convert to fraction form
    251,950.56/347,691.73 = 138,773.31/x
  3. Step 3: Cross multiply
    251,950.56x = 347,691.73 × 138,773.31
  4. Step 4: Simplify right side
    251,950.56x = 48,250,332,231.73
  5. Step 5: Solve for x
    x = 48,250,332,231.73/251,950.56
  6. Step 6: Final answer
    x = 191,507.14

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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.