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Finding the Fourth Proportional to 125,679.44, 188,479.20 and 41,423.90

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Solution

The fourth proportional to 125,679.44, 188,479.20 and 41,423.90 is: 62,122.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,679.44 : 188,479.20 = 41,423.90 : x
  2. Step 2: Convert to fraction form
    125,679.44/188,479.20 = 41,423.90/x
  3. Step 3: Cross multiply
    125,679.44x = 188,479.20 × 41,423.90
  4. Step 4: Simplify right side
    125,679.44x = 7,807,543,532.88
  5. Step 5: Solve for x
    x = 7,807,543,532.88/125,679.44
  6. Step 6: Final answer
    x = 62,122.68

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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.