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Finding the Fourth Proportional to 72,452.30, 108,532.65 and 48,832.70

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Solution

The fourth proportional to 72,452.30, 108,532.65 and 48,832.70 is: 73,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,452.30 : 108,532.65 = 48,832.70 : x
  2. Step 2: Convert to fraction form
    72,452.30/108,532.65 = 48,832.70/x
  3. Step 3: Cross multiply
    72,452.30x = 108,532.65 × 48,832.70
  4. Step 4: Simplify right side
    72,452.30x = 5,299,942,337.66
  5. Step 5: Solve for x
    x = 5,299,942,337.66/72,452.30
  6. Step 6: Final answer
    x = 73,150.78

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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.