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Finding the Fourth Proportional to 125,920.54, 188,865.87 and 41,680.90

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Solution

The fourth proportional to 125,920.54, 188,865.87 and 41,680.90 is: 62,516.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,920.54 : 188,865.87 = 41,680.90 : x
  2. Step 2: Convert to fraction form
    125,920.54/188,865.87 = 41,680.90/x
  3. Step 3: Cross multiply
    125,920.54x = 188,865.87 × 41,680.90
  4. Step 4: Simplify right side
    125,920.54x = 7,872,099,440.88
  5. Step 5: Solve for x
    x = 7,872,099,440.88/125,920.54
  6. Step 6: Final answer
    x = 62,516.40

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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.