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Finding the Fourth Proportional to 203,353.59, 305,028.84 and 61,198.25

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Solution

The fourth proportional to 203,353.59, 305,028.84 and 61,198.25 is: 91,796.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,353.59 : 305,028.84 = 61,198.25 : x
  2. Step 2: Convert to fraction form
    203,353.59/305,028.84 = 61,198.25/x
  3. Step 3: Cross multiply
    203,353.59x = 305,028.84 × 61,198.25
  4. Step 4: Simplify right side
    203,353.59x = 18,667,231,207.53
  5. Step 5: Solve for x
    x = 18,667,231,207.53/203,353.59
  6. Step 6: Final answer
    x = 91,796.91

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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.