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Finding the Fourth Proportional to 244,540.80, 366,811.20 and 213,436.80

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Solution

The fourth proportional to 244,540.80, 366,811.20 and 213,436.80 is: 320,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,540.80 : 366,811.20 = 213,436.80 : x
  2. Step 2: Convert to fraction form
    244,540.80/366,811.20 = 213,436.80/x
  3. Step 3: Cross multiply
    244,540.80x = 366,811.20 × 213,436.80
  4. Step 4: Simplify right side
    244,540.80x = 78,291,008,732.16
  5. Step 5: Solve for x
    x = 78,291,008,732.16/244,540.80
  6. Step 6: Final answer
    x = 320,155.20

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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.