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Finding the Fourth Proportional to 226,112.40, 339,174 and 68,340.24

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Solution

The fourth proportional to 226,112.40, 339,174 and 68,340.24 is: 102,511.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,112.40 : 339,174 = 68,340.24 : x
  2. Step 2: Convert to fraction form
    226,112.40/339,174 = 68,340.24/x
  3. Step 3: Cross multiply
    226,112.40x = 339,174 × 68,340.24
  4. Step 4: Simplify right side
    226,112.40x = 23,179,232,561.76
  5. Step 5: Solve for x
    x = 23,179,232,561.76/226,112.40
  6. Step 6: Final answer
    x = 102,511.99

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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.