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Finding the Fourth Proportional to 220,847.56, 331,324.16 and 71,101.84

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Solution

The fourth proportional to 220,847.56, 331,324.16 and 71,101.84 is: 106,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,847.56 : 331,324.16 = 71,101.84 : x
  2. Step 2: Convert to fraction form
    220,847.56/331,324.16 = 71,101.84/x
  3. Step 3: Cross multiply
    220,847.56x = 331,324.16 × 71,101.84
  4. Step 4: Simplify right side
    220,847.56x = 23,557,757,412.45
  5. Step 5: Solve for x
    x = 23,557,757,412.45/220,847.56
  6. Step 6: Final answer
    x = 106,669.77

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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.