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Finding the Fourth Proportional to 69,644.38, 104,350.34 and 67,052.78

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Solution

The fourth proportional to 69,644.38, 104,350.34 and 67,052.78 is: 100,467.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,644.38 : 104,350.34 = 67,052.78 : x
  2. Step 2: Convert to fraction form
    69,644.38/104,350.34 = 67,052.78/x
  3. Step 3: Cross multiply
    69,644.38x = 104,350.34 × 67,052.78
  4. Step 4: Simplify right side
    69,644.38x = 6,996,980,390.95
  5. Step 5: Solve for x
    x = 6,996,980,390.95/69,644.38
  6. Step 6: Final answer
    x = 100,467.27

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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.