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Finding the Fourth Proportional to 215,920.33, 323,917.34 and 73,757.77

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Solution

The fourth proportional to 215,920.33, 323,917.34 and 73,757.77 is: 110,649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,920.33 : 323,917.34 = 73,757.77 : x
  2. Step 2: Convert to fraction form
    215,920.33/323,917.34 = 73,757.77/x
  3. Step 3: Cross multiply
    215,920.33x = 323,917.34 × 73,757.77
  4. Step 4: Simplify right side
    215,920.33x = 23,891,420,662.73
  5. Step 5: Solve for x
    x = 23,891,420,662.73/215,920.33
  6. Step 6: Final answer
    x = 110,649.24

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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.