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Finding the Fourth Proportional to 179,796.74, 269,724.36 and 67,485.78

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Solution

The fourth proportional to 179,796.74, 269,724.36 and 67,485.78 is: 101,239.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,796.74 : 269,724.36 = 67,485.78 : x
  2. Step 2: Convert to fraction form
    179,796.74/269,724.36 = 67,485.78/x
  3. Step 3: Cross multiply
    179,796.74x = 269,724.36 × 67,485.78
  4. Step 4: Simplify right side
    179,796.74x = 18,202,558,819.60
  5. Step 5: Solve for x
    x = 18,202,558,819.60/179,796.74
  6. Step 6: Final answer
    x = 101,239.65

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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.