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Finding the Fourth Proportional to 179,632.80, 269,449.20 and 159,415.20

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Solution

The fourth proportional to 179,632.80, 269,449.20 and 159,415.20 is: 239,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,632.80 : 269,449.20 = 159,415.20 : x
  2. Step 2: Convert to fraction form
    179,632.80/269,449.20 = 159,415.20/x
  3. Step 3: Cross multiply
    179,632.80x = 269,449.20 × 159,415.20
  4. Step 4: Simplify right side
    179,632.80x = 42,954,298,107.84
  5. Step 5: Solve for x
    x = 42,954,298,107.84/179,632.80
  6. Step 6: Final answer
    x = 239,122.80

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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.