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Finding the Fourth Proportional to 179,092.80, 268,639.20 and 73,876.80

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Solution

The fourth proportional to 179,092.80, 268,639.20 and 73,876.80 is: 110,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,092.80 : 268,639.20 = 73,876.80 : x
  2. Step 2: Convert to fraction form
    179,092.80/268,639.20 = 73,876.80/x
  3. Step 3: Cross multiply
    179,092.80x = 268,639.20 × 73,876.80
  4. Step 4: Simplify right side
    179,092.80x = 19,846,204,450.56
  5. Step 5: Solve for x
    x = 19,846,204,450.56/179,092.80
  6. Step 6: Final answer
    x = 110,815.20

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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.