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Finding the Fourth Proportional to 69,179.65, 103,794 and 34,143.91

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Solution

The fourth proportional to 69,179.65, 103,794 and 34,143.91 is: 51,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,179.65 : 103,794 = 34,143.91 : x
  2. Step 2: Convert to fraction form
    69,179.65/103,794 = 34,143.91/x
  3. Step 3: Cross multiply
    69,179.65x = 103,794 × 34,143.91
  4. Step 4: Simplify right side
    69,179.65x = 3,543,932,994.54
  5. Step 5: Solve for x
    x = 3,543,932,994.54/69,179.65
  6. Step 6: Final answer
    x = 51,227.97

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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.