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Finding the Fourth Proportional to 72,169.57, 108,270.76 and 32,737.96

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Solution

The fourth proportional to 72,169.57, 108,270.76 and 32,737.96 is: 49,114.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,169.57 : 108,270.76 = 32,737.96 : x
  2. Step 2: Convert to fraction form
    72,169.57/108,270.76 = 32,737.96/x
  3. Step 3: Cross multiply
    72,169.57x = 108,270.76 × 32,737.96
  4. Step 4: Simplify right side
    72,169.57x = 3,544,563,810.05
  5. Step 5: Solve for x
    x = 3,544,563,810.05/72,169.57
  6. Step 6: Final answer
    x = 49,114.38

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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.