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Finding the Fourth Proportional to 350,855.28, 484,179.39 and 189,709.83

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Solution

The fourth proportional to 350,855.28, 484,179.39 and 189,709.83 is: 261,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,855.28 : 484,179.39 = 189,709.83 : x
  2. Step 2: Convert to fraction form
    350,855.28/484,179.39 = 189,709.83/x
  3. Step 3: Cross multiply
    350,855.28x = 484,179.39 × 189,709.83
  4. Step 4: Simplify right side
    350,855.28x = 91,853,589,766.40
  5. Step 5: Solve for x
    x = 91,853,589,766.40/350,855.28
  6. Step 6: Final answer
    x = 261,799.08

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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.