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Finding the Fourth Proportional to 179,696.80, 269,545.20 and 159,479.20

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Solution

The fourth proportional to 179,696.80, 269,545.20 and 159,479.20 is: 239,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,696.80 : 269,545.20 = 159,479.20 : x
  2. Step 2: Convert to fraction form
    179,696.80/269,545.20 = 159,479.20/x
  3. Step 3: Cross multiply
    179,696.80x = 269,545.20 × 159,479.20
  4. Step 4: Simplify right side
    179,696.80x = 42,986,852,859.84
  5. Step 5: Solve for x
    x = 42,986,852,859.84/179,696.80
  6. Step 6: Final answer
    x = 239,218.80

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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.