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Finding the Fourth Proportional to 223,540.80, 335,311.20 and 57,328.80

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Solution

The fourth proportional to 223,540.80, 335,311.20 and 57,328.80 is: 85,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,540.80 : 335,311.20 = 57,328.80 : x
  2. Step 2: Convert to fraction form
    223,540.80/335,311.20 = 57,328.80/x
  3. Step 3: Cross multiply
    223,540.80x = 335,311.20 × 57,328.80
  4. Step 4: Simplify right side
    223,540.80x = 19,222,988,722.56
  5. Step 5: Solve for x
    x = 19,222,988,722.56/223,540.80
  6. Step 6: Final answer
    x = 85,993.20

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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.