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Finding the Fourth Proportional to 69,079.76, 103,619.62 and 27,555.92

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Solution

The fourth proportional to 69,079.76, 103,619.62 and 27,555.92 is: 41,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.76 : 103,619.62 = 27,555.92 : x
  2. Step 2: Convert to fraction form
    69,079.76/103,619.62 = 27,555.92/x
  3. Step 3: Cross multiply
    69,079.76x = 103,619.62 × 27,555.92
  4. Step 4: Simplify right side
    69,079.76x = 2,855,333,959.15
  5. Step 5: Solve for x
    x = 2,855,333,959.15/69,079.76
  6. Step 6: Final answer
    x = 41,333.87

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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.