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Finding the Fourth Proportional to 74,785.86, 103,204.53 and 41,251.86

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Solution

The fourth proportional to 74,785.86, 103,204.53 and 41,251.86 is: 56,927.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.86 : 103,204.53 = 41,251.86 : x
  2. Step 2: Convert to fraction form
    74,785.86/103,204.53 = 41,251.86/x
  3. Step 3: Cross multiply
    74,785.86x = 103,204.53 × 41,251.86
  4. Step 4: Simplify right side
    74,785.86x = 4,257,378,822.93
  5. Step 5: Solve for x
    x = 4,257,378,822.93/74,785.86
  6. Step 6: Final answer
    x = 56,927.59

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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.