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Finding the Fourth Proportional to 125,910.14, 188,865.20 and 41,647.65

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Solution

The fourth proportional to 125,910.14, 188,865.20 and 41,647.65 is: 62,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,910.14 : 188,865.20 = 41,647.65 : x
  2. Step 2: Convert to fraction form
    125,910.14/188,865.20 = 41,647.65/x
  3. Step 3: Cross multiply
    125,910.14x = 188,865.20 × 41,647.65
  4. Step 4: Simplify right side
    125,910.14x = 7,865,791,538.54
  5. Step 5: Solve for x
    x = 7,865,791,538.54/125,910.14
  6. Step 6: Final answer
    x = 62,471.47

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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.