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Finding the Fourth Proportional to 159,640.30, 239,569.80 and 88,562.80

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Solution

The fourth proportional to 159,640.30, 239,569.80 and 88,562.80 is: 132,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,640.30 : 239,569.80 = 88,562.80 : x
  2. Step 2: Convert to fraction form
    159,640.30/239,569.80 = 88,562.80/x
  3. Step 3: Cross multiply
    159,640.30x = 239,569.80 × 88,562.80
  4. Step 4: Simplify right side
    159,640.30x = 21,216,972,283.44
  5. Step 5: Solve for x
    x = 21,216,972,283.44/159,640.30
  6. Step 6: Final answer
    x = 132,904.86

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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.