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Finding the Fourth Proportional to 179,793.30, 269,722.35 and 74,622.90

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Solution

The fourth proportional to 179,793.30, 269,722.35 and 74,622.90 is: 111,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,793.30 : 269,722.35 = 74,622.90 : x
  2. Step 2: Convert to fraction form
    179,793.30/269,722.35 = 74,622.90/x
  3. Step 3: Cross multiply
    179,793.30x = 269,722.35 × 74,622.90
  4. Step 4: Simplify right side
    179,793.30x = 20,127,463,951.82
  5. Step 5: Solve for x
    x = 20,127,463,951.82/179,793.30
  6. Step 6: Final answer
    x = 111,947.80

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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.