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Finding the Fourth Proportional to 188,517.27, 282,777.84 and 55,399.89

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Solution

The fourth proportional to 188,517.27, 282,777.84 and 55,399.89 is: 83,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,517.27 : 282,777.84 = 55,399.89 : x
  2. Step 2: Convert to fraction form
    188,517.27/282,777.84 = 55,399.89/x
  3. Step 3: Cross multiply
    188,517.27x = 282,777.84 × 55,399.89
  4. Step 4: Simplify right side
    188,517.27x = 15,665,861,230.44
  5. Step 5: Solve for x
    x = 15,665,861,230.44/188,517.27
  6. Step 6: Final answer
    x = 83,100.40

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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.