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Finding the Fourth Proportional to 200,596.78, 300,910.02 and 67,476.52

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Solution

The fourth proportional to 200,596.78, 300,910.02 and 67,476.52 is: 101,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,596.78 : 300,910.02 = 67,476.52 : x
  2. Step 2: Convert to fraction form
    200,596.78/300,910.02 = 67,476.52/x
  3. Step 3: Cross multiply
    200,596.78x = 300,910.02 × 67,476.52
  4. Step 4: Simplify right side
    200,596.78x = 20,304,360,982.73
  5. Step 5: Solve for x
    x = 20,304,360,982.73/200,596.78
  6. Step 6: Final answer
    x = 101,219.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.