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Finding the Fourth Proportional to 167,140.38, 250,787.10 and 72,399.54

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Solution

The fourth proportional to 167,140.38, 250,787.10 and 72,399.54 is: 108,632.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,140.38 : 250,787.10 = 72,399.54 : x
  2. Step 2: Convert to fraction form
    167,140.38/250,787.10 = 72,399.54/x
  3. Step 3: Cross multiply
    167,140.38x = 250,787.10 × 72,399.54
  4. Step 4: Simplify right side
    167,140.38x = 18,156,870,677.93
  5. Step 5: Solve for x
    x = 18,156,870,677.93/167,140.38
  6. Step 6: Final answer
    x = 108,632.46

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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.