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Finding the Fourth Proportional to 74,785.38, 103,203.82 and 41,251.38

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Solution

The fourth proportional to 74,785.38, 103,203.82 and 41,251.38 is: 56,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.38 : 103,203.82 = 41,251.38 : x
  2. Step 2: Convert to fraction form
    74,785.38/103,203.82 = 41,251.38/x
  3. Step 3: Cross multiply
    74,785.38x = 103,203.82 × 41,251.38
  4. Step 4: Simplify right side
    74,785.38x = 4,257,299,996.27
  5. Step 5: Solve for x
    x = 4,257,299,996.27/74,785.38
  6. Step 6: Final answer
    x = 56,926.90

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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.