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Finding the Fourth Proportional to 335,121.56, 503,040.44 and 135,572.38

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Solution

The fourth proportional to 335,121.56, 503,040.44 and 135,572.38 is: 203,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,121.56 : 503,040.44 = 135,572.38 : x
  2. Step 2: Convert to fraction form
    335,121.56/503,040.44 = 135,572.38/x
  3. Step 3: Cross multiply
    335,121.56x = 503,040.44 × 135,572.38
  4. Step 4: Simplify right side
    335,121.56x = 68,198,389,687.05
  5. Step 5: Solve for x
    x = 68,198,389,687.05/335,121.56
  6. Step 6: Final answer
    x = 203,503.44

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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.