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Finding the Fourth Proportional to 351,796.85, 485,480.06 and 190,651.89

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Solution

The fourth proportional to 351,796.85, 485,480.06 and 190,651.89 is: 263,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,796.85 : 485,480.06 = 190,651.89 : x
  2. Step 2: Convert to fraction form
    351,796.85/485,480.06 = 190,651.89/x
  3. Step 3: Cross multiply
    351,796.85x = 485,480.06 × 190,651.89
  4. Step 4: Simplify right side
    351,796.85x = 92,557,690,996.31
  5. Step 5: Solve for x
    x = 92,557,690,996.31/351,796.85
  6. Step 6: Final answer
    x = 263,099.83

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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.