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Finding the Fourth Proportional to 159,630.52, 239,361.78 and 70,845.88

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Solution

The fourth proportional to 159,630.52, 239,361.78 and 70,845.88 is: 106,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,630.52 : 239,361.78 = 70,845.88 : x
  2. Step 2: Convert to fraction form
    159,630.52/239,361.78 = 70,845.88/x
  3. Step 3: Cross multiply
    159,630.52x = 239,361.78 × 70,845.88
  4. Step 4: Simplify right side
    159,630.52x = 16,957,795,942.47
  5. Step 5: Solve for x
    x = 16,957,795,942.47/159,630.52
  6. Step 6: Final answer
    x = 106,231.54

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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.