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Finding the Fourth Proportional to 140,993.63, 194,617.74 and 126,046.85

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Solution

The fourth proportional to 140,993.63, 194,617.74 and 126,046.85 is: 173,986.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,993.63 : 194,617.74 = 126,046.85 : x
  2. Step 2: Convert to fraction form
    140,993.63/194,617.74 = 126,046.85/x
  3. Step 3: Cross multiply
    140,993.63x = 194,617.74 × 126,046.85
  4. Step 4: Simplify right side
    140,993.63x = 24,530,952,450.88
  5. Step 5: Solve for x
    x = 24,530,952,450.88/140,993.63
  6. Step 6: Final answer
    x = 173,986.25

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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.