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Finding the Fourth Proportional to 159,640.76, 239,098.66 and 123,814.48

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Solution

The fourth proportional to 159,640.76, 239,098.66 and 123,814.48 is: 185,440.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,640.76 : 239,098.66 = 123,814.48 : x
  2. Step 2: Convert to fraction form
    159,640.76/239,098.66 = 123,814.48/x
  3. Step 3: Cross multiply
    159,640.76x = 239,098.66 × 123,814.48
  4. Step 4: Simplify right side
    159,640.76x = 29,603,876,256.60
  5. Step 5: Solve for x
    x = 29,603,876,256.60/159,640.76
  6. Step 6: Final answer
    x = 185,440.59

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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.