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Finding the Fourth Proportional to 220,354.56, 330,480.72 and 107,922.60

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Solution

The fourth proportional to 220,354.56, 330,480.72 and 107,922.60 is: 161,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,354.56 : 330,480.72 = 107,922.60 : x
  2. Step 2: Convert to fraction form
    220,354.56/330,480.72 = 107,922.60/x
  3. Step 3: Cross multiply
    220,354.56x = 330,480.72 × 107,922.60
  4. Step 4: Simplify right side
    220,354.56x = 35,666,338,552.27
  5. Step 5: Solve for x
    x = 35,666,338,552.27/220,354.56
  6. Step 6: Final answer
    x = 161,858.86

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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.