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Finding the Fourth Proportional to 179,687.20, 269,530.80 and 55,028.20

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Solution

The fourth proportional to 179,687.20, 269,530.80 and 55,028.20 is: 82,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,687.20 : 269,530.80 = 55,028.20 : x
  2. Step 2: Convert to fraction form
    179,687.20/269,530.80 = 55,028.20/x
  3. Step 3: Cross multiply
    179,687.20x = 269,530.80 × 55,028.20
  4. Step 4: Simplify right side
    179,687.20x = 14,831,794,768.56
  5. Step 5: Solve for x
    x = 14,831,794,768.56/179,687.20
  6. Step 6: Final answer
    x = 82,542.30

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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.