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Finding the Fourth Proportional to 111,861.92, 167,792.84 and 40,789.92

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Solution

The fourth proportional to 111,861.92, 167,792.84 and 40,789.92 is: 61,184.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,861.92 : 167,792.84 = 40,789.92 : x
  2. Step 2: Convert to fraction form
    111,861.92/167,792.84 = 40,789.92/x
  3. Step 3: Cross multiply
    111,861.92x = 167,792.84 × 40,789.92
  4. Step 4: Simplify right side
    111,861.92x = 6,844,256,520.17
  5. Step 5: Solve for x
    x = 6,844,256,520.17/111,861.92
  6. Step 6: Final answer
    x = 61,184.87

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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.