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Finding the Fourth Proportional to 220,646.44, 330,973.31 and 106,728.04

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Solution

The fourth proportional to 220,646.44, 330,973.31 and 106,728.04 is: 160,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,646.44 : 330,973.31 = 106,728.04 : x
  2. Step 2: Convert to fraction form
    220,646.44/330,973.31 = 106,728.04/x
  3. Step 3: Cross multiply
    220,646.44x = 330,973.31 × 106,728.04
  4. Step 4: Simplify right side
    220,646.44x = 35,324,132,668.61
  5. Step 5: Solve for x
    x = 35,324,132,668.61/220,646.44
  6. Step 6: Final answer
    x = 160,093.83

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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.