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Finding the Fourth Proportional to 72,671.24, 108,912.53 and 32,660.66

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Solution

The fourth proportional to 72,671.24, 108,912.53 and 32,660.66 is: 48,948.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,671.24 : 108,912.53 = 32,660.66 : x
  2. Step 2: Convert to fraction form
    72,671.24/108,912.53 = 32,660.66/x
  3. Step 3: Cross multiply
    72,671.24x = 108,912.53 × 32,660.66
  4. Step 4: Simplify right side
    72,671.24x = 3,557,154,649.16
  5. Step 5: Solve for x
    x = 3,557,154,649.16/72,671.24
  6. Step 6: Final answer
    x = 48,948.59

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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.