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Finding the Fourth Proportional to 235,691.57, 353,540.60 and 67,211.98

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Solution

The fourth proportional to 235,691.57, 353,540.60 and 67,211.98 is: 100,818.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,691.57 : 353,540.60 = 67,211.98 : x
  2. Step 2: Convert to fraction form
    235,691.57/353,540.60 = 67,211.98/x
  3. Step 3: Cross multiply
    235,691.57x = 353,540.60 × 67,211.98
  4. Step 4: Simplify right side
    235,691.57x = 23,762,162,768.52
  5. Step 5: Solve for x
    x = 23,762,162,768.52/235,691.57
  6. Step 6: Final answer
    x = 100,818.89

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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.