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Finding the Fourth Proportional to 324,103.80, 485,742.60 and 181,948.80

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Solution

The fourth proportional to 324,103.80, 485,742.60 and 181,948.80 is: 272,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,103.80 : 485,742.60 = 181,948.80 : x
  2. Step 2: Convert to fraction form
    324,103.80/485,742.60 = 181,948.80/x
  3. Step 3: Cross multiply
    324,103.80x = 485,742.60 × 181,948.80
  4. Step 4: Simplify right side
    324,103.80x = 88,380,283,178.88
  5. Step 5: Solve for x
    x = 88,380,283,178.88/324,103.80
  6. Step 6: Final answer
    x = 272,691.29

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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.