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Finding the Fourth Proportional to 72,337.20, 108,432.90 and 32,922.60

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Solution

The fourth proportional to 72,337.20, 108,432.90 and 32,922.60 is: 49,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,337.20 : 108,432.90 = 32,922.60 : x
  2. Step 2: Convert to fraction form
    72,337.20/108,432.90 = 32,922.60/x
  3. Step 3: Cross multiply
    72,337.20x = 108,432.90 × 32,922.60
  4. Step 4: Simplify right side
    72,337.20x = 3,569,892,993.54
  5. Step 5: Solve for x
    x = 3,569,892,993.54/72,337.20
  6. Step 6: Final answer
    x = 49,350.72

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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.