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Finding the Fourth Proportional to 148,839.20, 223,287.60 and 43,661.60

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Solution

The fourth proportional to 148,839.20, 223,287.60 and 43,661.60 is: 65,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,839.20 : 223,287.60 = 43,661.60 : x
  2. Step 2: Convert to fraction form
    148,839.20/223,287.60 = 43,661.60/x
  3. Step 3: Cross multiply
    148,839.20x = 223,287.60 × 43,661.60
  4. Step 4: Simplify right side
    148,839.20x = 9,749,093,876.16
  5. Step 5: Solve for x
    x = 9,749,093,876.16/148,839.20
  6. Step 6: Final answer
    x = 65,500.85

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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.