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Finding the Fourth Proportional to 251,950.36, 347,691.50 and 138,773.11

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Solution

The fourth proportional to 251,950.36, 347,691.50 and 138,773.11 is: 191,506.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,950.36 : 347,691.50 = 138,773.11 : x
  2. Step 2: Convert to fraction form
    251,950.36/347,691.50 = 138,773.11/x
  3. Step 3: Cross multiply
    251,950.36x = 347,691.50 × 138,773.11
  4. Step 4: Simplify right side
    251,950.36x = 48,250,230,081.70
  5. Step 5: Solve for x
    x = 48,250,230,081.70/251,950.36
  6. Step 6: Final answer
    x = 191,506.89

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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.