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Finding the Fourth Proportional to 263,040.70, 394,723.05 and 113,352.70

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Solution

The fourth proportional to 263,040.70, 394,723.05 and 113,352.70 is: 170,098.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,040.70 : 394,723.05 = 113,352.70 : x
  2. Step 2: Convert to fraction form
    263,040.70/394,723.05 = 113,352.70/x
  3. Step 3: Cross multiply
    263,040.70x = 394,723.05 × 113,352.70
  4. Step 4: Simplify right side
    263,040.70x = 44,742,923,469.74
  5. Step 5: Solve for x
    x = 44,742,923,469.74/263,040.70
  6. Step 6: Final answer
    x = 170,098.86

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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.