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Finding the Fourth Proportional to 125,640.55, 173,382.01 and 69,050.71

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Solution

The fourth proportional to 125,640.55, 173,382.01 and 69,050.71 is: 95,288.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,640.55 : 173,382.01 = 69,050.71 : x
  2. Step 2: Convert to fraction form
    125,640.55/173,382.01 = 69,050.71/x
  3. Step 3: Cross multiply
    125,640.55x = 173,382.01 × 69,050.71
  4. Step 4: Simplify right side
    125,640.55x = 11,972,150,891.73
  5. Step 5: Solve for x
    x = 11,972,150,891.73/125,640.55
  6. Step 6: Final answer
    x = 95,288.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.