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Finding the Fourth Proportional to 194,785.33, 268,802.72 and 108,739.30

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Solution

The fourth proportional to 194,785.33, 268,802.72 and 108,739.30 is: 150,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,785.33 : 268,802.72 = 108,739.30 : x
  2. Step 2: Convert to fraction form
    194,785.33/268,802.72 = 108,739.30/x
  3. Step 3: Cross multiply
    194,785.33x = 268,802.72 × 108,739.30
  4. Step 4: Simplify right side
    194,785.33x = 29,229,419,610.90
  5. Step 5: Solve for x
    x = 29,229,419,610.90/194,785.33
  6. Step 6: Final answer
    x = 150,059.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.