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Finding the Fourth Proportional to 293,942.44, 440,866.46 and 80,660.54

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Solution

The fourth proportional to 293,942.44, 440,866.46 and 80,660.54 is: 120,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,942.44 : 440,866.46 = 80,660.54 : x
  2. Step 2: Convert to fraction form
    293,942.44/440,866.46 = 80,660.54/x
  3. Step 3: Cross multiply
    293,942.44x = 440,866.46 × 80,660.54
  4. Step 4: Simplify right side
    293,942.44x = 35,560,526,630.66
  5. Step 5: Solve for x
    x = 35,560,526,630.66/293,942.44
  6. Step 6: Final answer
    x = 120,977.86

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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.