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Finding the Fourth Proportional to 226,578.60, 339,577.16 and 191,453.54

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Solution

The fourth proportional to 226,578.60, 339,577.16 and 191,453.54 is: 286,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,578.60 : 339,577.16 = 191,453.54 : x
  2. Step 2: Convert to fraction form
    226,578.60/339,577.16 = 191,453.54/x
  3. Step 3: Cross multiply
    226,578.60x = 339,577.16 × 191,453.54
  4. Step 4: Simplify right side
    226,578.60x = 65,013,246,729.99
  5. Step 5: Solve for x
    x = 65,013,246,729.99/226,578.60
  6. Step 6: Final answer
    x = 286,934.63

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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.