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Finding the Fourth Proportional to 253,879, 350,353.04 and 140,709.04

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Solution

The fourth proportional to 253,879, 350,353.04 and 140,709.04 is: 194,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,879 : 350,353.04 = 140,709.04 : x
  2. Step 2: Convert to fraction form
    253,879/350,353.04 = 140,709.04/x
  3. Step 3: Cross multiply
    253,879x = 350,353.04 × 140,709.04
  4. Step 4: Simplify right side
    253,879x = 49,297,839,919.48
  5. Step 5: Solve for x
    x = 49,297,839,919.48/253,879
  6. Step 6: Final answer
    x = 194,178.49

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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.