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Finding the Fourth Proportional to 244,912.80, 367,369.20 and 87,319.20

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Solution

The fourth proportional to 244,912.80, 367,369.20 and 87,319.20 is: 130,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,912.80 : 367,369.20 = 87,319.20 : x
  2. Step 2: Convert to fraction form
    244,912.80/367,369.20 = 87,319.20/x
  3. Step 3: Cross multiply
    244,912.80x = 367,369.20 × 87,319.20
  4. Step 4: Simplify right side
    244,912.80x = 32,078,384,648.64
  5. Step 5: Solve for x
    x = 32,078,384,648.64/244,912.80
  6. Step 6: Final answer
    x = 130,978.80

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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.