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Finding the Fourth Proportional to 244,013.70, 366,020.55 and 86,247.30

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Solution

The fourth proportional to 244,013.70, 366,020.55 and 86,247.30 is: 129,370.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,013.70 : 366,020.55 = 86,247.30 : x
  2. Step 2: Convert to fraction form
    244,013.70/366,020.55 = 86,247.30/x
  3. Step 3: Cross multiply
    244,013.70x = 366,020.55 × 86,247.30
  4. Step 4: Simplify right side
    244,013.70x = 31,568,284,182.02
  5. Step 5: Solve for x
    x = 31,568,284,182.02/244,013.70
  6. Step 6: Final answer
    x = 129,370.95

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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.