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Finding the Fourth Proportional to 159,549.82, 239,324.46 and 74,113.96

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Solution

The fourth proportional to 159,549.82, 239,324.46 and 74,113.96 is: 111,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,549.82 : 239,324.46 = 74,113.96 : x
  2. Step 2: Convert to fraction form
    159,549.82/239,324.46 = 74,113.96/x
  3. Step 3: Cross multiply
    159,549.82x = 239,324.46 × 74,113.96
  4. Step 4: Simplify right side
    159,549.82x = 17,737,283,455.46
  5. Step 5: Solve for x
    x = 17,737,283,455.46/159,549.82
  6. Step 6: Final answer
    x = 111,170.81

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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.