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Finding the Fourth Proportional to 179,713.32, 269,621.82 and 74,512.68

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Solution

The fourth proportional to 179,713.32, 269,621.82 and 74,512.68 is: 111,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,713.32 : 269,621.82 = 74,512.68 : x
  2. Step 2: Convert to fraction form
    179,713.32/269,621.82 = 74,512.68/x
  3. Step 3: Cross multiply
    179,713.32x = 269,621.82 × 74,512.68
  4. Step 4: Simplify right side
    179,713.32x = 20,090,244,394.68
  5. Step 5: Solve for x
    x = 20,090,244,394.68/179,713.32
  6. Step 6: Final answer
    x = 111,790.51

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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.