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Finding the Fourth Proportional to 74,481.62, 111,687.26 and 27,063.68

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Solution

The fourth proportional to 74,481.62, 111,687.26 and 27,063.68 is: 40,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,481.62 : 111,687.26 = 27,063.68 : x
  2. Step 2: Convert to fraction form
    74,481.62/111,687.26 = 27,063.68/x
  3. Step 3: Cross multiply
    74,481.62x = 111,687.26 × 27,063.68
  4. Step 4: Simplify right side
    74,481.62x = 3,022,668,264.72
  5. Step 5: Solve for x
    x = 3,022,668,264.72/74,481.62
  6. Step 6: Final answer
    x = 40,582.74

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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.