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Finding the Fourth Proportional to 226,890.67, 340,338.74 and 69,120.49

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Solution

The fourth proportional to 226,890.67, 340,338.74 and 69,120.49 is: 103,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,890.67 : 340,338.74 = 69,120.49 : x
  2. Step 2: Convert to fraction form
    226,890.67/340,338.74 = 69,120.49/x
  3. Step 3: Cross multiply
    226,890.67x = 340,338.74 × 69,120.49
  4. Step 4: Simplify right side
    226,890.67x = 23,524,380,110.87
  5. Step 5: Solve for x
    x = 23,524,380,110.87/226,890.67
  6. Step 6: Final answer
    x = 103,681.57

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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.