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Finding the Fourth Proportional to 179,481.92, 269,051.44 and 67,131.68

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Solution

The fourth proportional to 179,481.92, 269,051.44 and 67,131.68 is: 100,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,481.92 : 269,051.44 = 67,131.68 : x
  2. Step 2: Convert to fraction form
    179,481.92/269,051.44 = 67,131.68/x
  3. Step 3: Cross multiply
    179,481.92x = 269,051.44 × 67,131.68
  4. Step 4: Simplify right side
    179,481.92x = 18,061,875,173.62
  5. Step 5: Solve for x
    x = 18,061,875,173.62/179,481.92
  6. Step 6: Final answer
    x = 100,633.40

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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.