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Finding the Fourth Proportional to 140,993.88, 194,618.08 and 126,047.10

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Solution

The fourth proportional to 140,993.88, 194,618.08 and 126,047.10 is: 173,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,993.88 : 194,618.08 = 126,047.10 : x
  2. Step 2: Convert to fraction form
    140,993.88/194,618.08 = 126,047.10/x
  3. Step 3: Cross multiply
    140,993.88x = 194,618.08 × 126,047.10
  4. Step 4: Simplify right side
    140,993.88x = 24,531,044,591.57
  5. Step 5: Solve for x
    x = 24,531,044,591.57/140,993.88
  6. Step 6: Final answer
    x = 173,986.59

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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.