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Finding the Fourth Proportional to 74,339.76, 102,542.22 and 44,103.68

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Solution

The fourth proportional to 74,339.76, 102,542.22 and 44,103.68 is: 60,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,339.76 : 102,542.22 = 44,103.68 : x
  2. Step 2: Convert to fraction form
    74,339.76/102,542.22 = 44,103.68/x
  3. Step 3: Cross multiply
    74,339.76x = 102,542.22 × 44,103.68
  4. Step 4: Simplify right side
    74,339.76x = 4,522,488,744.66
  5. Step 5: Solve for x
    x = 4,522,488,744.66/74,339.76
  6. Step 6: Final answer
    x = 60,835.40

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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.