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Finding the Fourth Proportional to 226,593.80, 339,987.90 and 115,785.80

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Solution

The fourth proportional to 226,593.80, 339,987.90 and 115,785.80 is: 173,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,593.80 : 339,987.90 = 115,785.80 : x
  2. Step 2: Convert to fraction form
    226,593.80/339,987.90 = 115,785.80/x
  3. Step 3: Cross multiply
    226,593.80x = 339,987.90 × 115,785.80
  4. Step 4: Simplify right side
    226,593.80x = 39,365,770,991.82
  5. Step 5: Solve for x
    x = 39,365,770,991.82/226,593.80
  6. Step 6: Final answer
    x = 173,728.37

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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.