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Finding the Fourth Proportional to 67,075.26, 100,481.41 and 38,936.31

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Solution

The fourth proportional to 67,075.26, 100,481.41 and 38,936.31 is: 58,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,075.26 : 100,481.41 = 38,936.31 : x
  2. Step 2: Convert to fraction form
    67,075.26/100,481.41 = 38,936.31/x
  3. Step 3: Cross multiply
    67,075.26x = 100,481.41 × 38,936.31
  4. Step 4: Simplify right side
    67,075.26x = 3,912,375,329.00
  5. Step 5: Solve for x
    x = 3,912,375,329.00/67,075.26
  6. Step 6: Final answer
    x = 58,328.14

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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.