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Finding the Fourth Proportional to 253,991.10, 350,523.44 and 140,813.85

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Solution

The fourth proportional to 253,991.10, 350,523.44 and 140,813.85 is: 194,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,991.10 : 350,523.44 = 140,813.85 : x
  2. Step 2: Convert to fraction form
    253,991.10/350,523.44 = 140,813.85/x
  3. Step 3: Cross multiply
    253,991.10x = 350,523.44 × 140,813.85
  4. Step 4: Simplify right side
    253,991.10x = 49,358,555,101.64
  5. Step 5: Solve for x
    x = 49,358,555,101.64/253,991.10
  6. Step 6: Final answer
    x = 194,331.83

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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.