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Finding the Fourth Proportional to 159,467.70, 239,115.15 and 65,982.90

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Solution

The fourth proportional to 159,467.70, 239,115.15 and 65,982.90 is: 98,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,467.70 : 239,115.15 = 65,982.90 : x
  2. Step 2: Convert to fraction form
    159,467.70/239,115.15 = 65,982.90/x
  3. Step 3: Cross multiply
    159,467.70x = 239,115.15 × 65,982.90
  4. Step 4: Simplify right side
    159,467.70x = 15,777,511,030.94
  5. Step 5: Solve for x
    x = 15,777,511,030.94/159,467.70
  6. Step 6: Final answer
    x = 98,938.60

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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.