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Finding the Fourth Proportional to 251,950.49, 347,691.65 and 138,773.24

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Solution

The fourth proportional to 251,950.49, 347,691.65 and 138,773.24 is: 191,507.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,950.49 : 347,691.65 = 138,773.24 : x
  2. Step 2: Convert to fraction form
    251,950.49/347,691.65 = 138,773.24/x
  3. Step 3: Cross multiply
    251,950.49x = 347,691.65 × 138,773.24
  4. Step 4: Simplify right side
    251,950.49x = 48,250,295,399.92
  5. Step 5: Solve for x
    x = 48,250,295,399.92/251,950.49
  6. Step 6: Final answer
    x = 191,507.06

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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.