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Finding the Fourth Proportional to 159,843.72, 239,872.56 and 66,349.44

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Solution

The fourth proportional to 159,843.72, 239,872.56 and 66,349.44 is: 99,568.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,843.72 : 239,872.56 = 66,349.44 : x
  2. Step 2: Convert to fraction form
    159,843.72/239,872.56 = 66,349.44/x
  3. Step 3: Cross multiply
    159,843.72x = 239,872.56 × 66,349.44
  4. Step 4: Simplify right side
    159,843.72x = 15,915,410,027.37
  5. Step 5: Solve for x
    x = 15,915,410,027.37/159,843.72
  6. Step 6: Final answer
    x = 99,568.57

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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.