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Finding the Fourth Proportional to 139,229.60, 208,932.26 and 59,267.44

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Solution

The fourth proportional to 139,229.60, 208,932.26 and 59,267.44 is: 88,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,229.60 : 208,932.26 = 59,267.44 : x
  2. Step 2: Convert to fraction form
    139,229.60/208,932.26 = 59,267.44/x
  3. Step 3: Cross multiply
    139,229.60x = 208,932.26 × 59,267.44
  4. Step 4: Simplify right side
    139,229.60x = 12,382,880,183.61
  5. Step 5: Solve for x
    x = 12,382,880,183.61/139,229.60
  6. Step 6: Final answer
    x = 88,938.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.