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Finding the Fourth Proportional to 110,921.80, 166,398.90 and 36,029.20

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Solution

The fourth proportional to 110,921.80, 166,398.90 and 36,029.20 is: 54,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,921.80 : 166,398.90 = 36,029.20 : x
  2. Step 2: Convert to fraction form
    110,921.80/166,398.90 = 36,029.20/x
  3. Step 3: Cross multiply
    110,921.80x = 166,398.90 × 36,029.20
  4. Step 4: Simplify right side
    110,921.80x = 5,995,219,247.88
  5. Step 5: Solve for x
    x = 5,995,219,247.88/110,921.80
  6. Step 6: Final answer
    x = 54,049.06

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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.