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Finding the Fourth Proportional to 226,469.60, 339,736.80 and 68,710.40

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Solution

The fourth proportional to 226,469.60, 339,736.80 and 68,710.40 is: 103,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,469.60 : 339,736.80 = 68,710.40 : x
  2. Step 2: Convert to fraction form
    226,469.60/339,736.80 = 68,710.40/x
  3. Step 3: Cross multiply
    226,469.60x = 339,736.80 × 68,710.40
  4. Step 4: Simplify right side
    226,469.60x = 23,343,451,422.72
  5. Step 5: Solve for x
    x = 23,343,451,422.72/226,469.60
  6. Step 6: Final answer
    x = 103,075.43

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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.