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Finding the Fourth Proportional to 110,660.80, 165,793.20 and 67,304.80

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Solution

The fourth proportional to 110,660.80, 165,793.20 and 67,304.80 is: 100,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,660.80 : 165,793.20 = 67,304.80 : x
  2. Step 2: Convert to fraction form
    110,660.80/165,793.20 = 67,304.80/x
  3. Step 3: Cross multiply
    110,660.80x = 165,793.20 × 67,304.80
  4. Step 4: Simplify right side
    110,660.80x = 11,158,678,167.36
  5. Step 5: Solve for x
    x = 11,158,678,167.36/110,660.80
  6. Step 6: Final answer
    x = 100,836.77

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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.