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Finding the Fourth Proportional to 235,647.92, 353,418.62 and 67,164.61

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Solution

The fourth proportional to 235,647.92, 353,418.62 and 67,164.61 is: 100,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,647.92 : 353,418.62 = 67,164.61 : x
  2. Step 2: Convert to fraction form
    235,647.92/353,418.62 = 67,164.61/x
  3. Step 3: Cross multiply
    235,647.92x = 353,418.62 × 67,164.61
  4. Step 4: Simplify right side
    235,647.92x = 23,737,222,559.67
  5. Step 5: Solve for x
    x = 23,737,222,559.67/235,647.92
  6. Step 6: Final answer
    x = 100,731.73

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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.