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Finding the Fourth Proportional to 196,600.80, 294,654.90 and 84,149.30

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Solution

The fourth proportional to 196,600.80, 294,654.90 and 84,149.30 is: 126,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,600.80 : 294,654.90 = 84,149.30 : x
  2. Step 2: Convert to fraction form
    196,600.80/294,654.90 = 84,149.30/x
  3. Step 3: Cross multiply
    196,600.80x = 294,654.90 × 84,149.30
  4. Step 4: Simplify right side
    196,600.80x = 24,795,003,576.57
  5. Step 5: Solve for x
    x = 24,795,003,576.57/196,600.80
  6. Step 6: Final answer
    x = 126,118.53

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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.