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Finding the Fourth Proportional to 98,743.44, 148,049.46 and 54,391.08

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Solution

The fourth proportional to 98,743.44, 148,049.46 and 54,391.08 is: 81,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,743.44 : 148,049.46 = 54,391.08 : x
  2. Step 2: Convert to fraction form
    98,743.44/148,049.46 = 54,391.08/x
  3. Step 3: Cross multiply
    98,743.44x = 148,049.46 × 54,391.08
  4. Step 4: Simplify right side
    98,743.44x = 8,052,570,022.82
  5. Step 5: Solve for x
    x = 8,052,570,022.82/98,743.44
  6. Step 6: Final answer
    x = 81,550.43

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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.