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Finding the Fourth Proportional to 159,821.31, 239,690.44 and 47,475.12

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Solution

The fourth proportional to 159,821.31, 239,690.44 and 47,475.12 is: 71,200.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,821.31 : 239,690.44 = 47,475.12 : x
  2. Step 2: Convert to fraction form
    159,821.31/239,690.44 = 47,475.12/x
  3. Step 3: Cross multiply
    159,821.31x = 239,690.44 × 47,475.12
  4. Step 4: Simplify right side
    159,821.31x = 11,379,332,401.85
  5. Step 5: Solve for x
    x = 11,379,332,401.85/159,821.31
  6. Step 6: Final answer
    x = 71,200.34

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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.