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Finding the Fourth Proportional to 74,747.88, 103,151.70 and 41,213.88

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Solution

The fourth proportional to 74,747.88, 103,151.70 and 41,213.88 is: 56,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.88 : 103,151.70 = 41,213.88 : x
  2. Step 2: Convert to fraction form
    74,747.88/103,151.70 = 41,213.88/x
  3. Step 3: Cross multiply
    74,747.88x = 103,151.70 × 41,213.88
  4. Step 4: Simplify right side
    74,747.88x = 4,251,281,785.60
  5. Step 5: Solve for x
    x = 4,251,281,785.60/74,747.88
  6. Step 6: Final answer
    x = 56,874.95

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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.