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Finding the Fourth Proportional to 226,072.80, 339,277.68 and 86,104.80

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Solution

The fourth proportional to 226,072.80, 339,277.68 and 86,104.80 is: 129,221.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,072.80 : 339,277.68 = 86,104.80 : x
  2. Step 2: Convert to fraction form
    226,072.80/339,277.68 = 86,104.80/x
  3. Step 3: Cross multiply
    226,072.80x = 339,277.68 × 86,104.80
  4. Step 4: Simplify right side
    226,072.80x = 29,213,436,780.86
  5. Step 5: Solve for x
    x = 29,213,436,780.86/226,072.80
  6. Step 6: Final answer
    x = 129,221.37

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1.5x scale

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.