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Finding the Fourth Proportional to 222,912.72, 334,394.45 and 80,824.91

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Solution

The fourth proportional to 222,912.72, 334,394.45 and 80,824.91 is: 121,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,912.72 : 334,394.45 = 80,824.91 : x
  2. Step 2: Convert to fraction form
    222,912.72/334,394.45 = 80,824.91/x
  3. Step 3: Cross multiply
    222,912.72x = 334,394.45 × 80,824.91
  4. Step 4: Simplify right side
    222,912.72x = 27,027,401,325.75
  5. Step 5: Solve for x
    x = 27,027,401,325.75/222,912.72
  6. Step 6: Final answer
    x = 121,246.56

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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.