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Finding the Fourth Proportional to 159,890.66, 239,794.20 and 47,540.62

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Solution

The fourth proportional to 159,890.66, 239,794.20 and 47,540.62 is: 71,298.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,890.66 : 239,794.20 = 47,540.62 : x
  2. Step 2: Convert to fraction form
    159,890.66/239,794.20 = 47,540.62/x
  3. Step 3: Cross multiply
    159,890.66x = 239,794.20 × 47,540.62
  4. Step 4: Simplify right side
    159,890.66x = 11,399,964,340.92
  5. Step 5: Solve for x
    x = 11,399,964,340.92/159,890.66
  6. Step 6: Final answer
    x = 71,298.50

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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.