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Finding the Fourth Proportional to 69,200.90, 103,785.42 and 27,081.98

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Solution

The fourth proportional to 69,200.90, 103,785.42 and 27,081.98 is: 40,616.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,200.90 : 103,785.42 = 27,081.98 : x
  2. Step 2: Convert to fraction form
    69,200.90/103,785.42 = 27,081.98/x
  3. Step 3: Cross multiply
    69,200.90x = 103,785.42 × 27,081.98
  4. Step 4: Simplify right side
    69,200.90x = 2,810,714,668.73
  5. Step 5: Solve for x
    x = 2,810,714,668.73/69,200.90
  6. Step 6: Final answer
    x = 40,616.74

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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.