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Finding the Fourth Proportional to 69,874.82, 104,855.31 and 44,930.78

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Solution

The fourth proportional to 69,874.82, 104,855.31 and 44,930.78 is: 67,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,874.82 : 104,855.31 = 44,930.78 : x
  2. Step 2: Convert to fraction form
    69,874.82/104,855.31 = 44,930.78/x
  3. Step 3: Cross multiply
    69,874.82x = 104,855.31 × 44,930.78
  4. Step 4: Simplify right side
    69,874.82x = 4,711,230,865.44
  5. Step 5: Solve for x
    x = 4,711,230,865.44/69,874.82
  6. Step 6: Final answer
    x = 67,423.87

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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.