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Finding the Fourth Proportional to 433,268.99, 649,843.37 and 133,759.43

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Solution

The fourth proportional to 433,268.99, 649,843.37 and 133,759.43 is: 200,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,268.99 : 649,843.37 = 133,759.43 : x
  2. Step 2: Convert to fraction form
    433,268.99/649,843.37 = 133,759.43/x
  3. Step 3: Cross multiply
    433,268.99x = 649,843.37 × 133,759.43
  4. Step 4: Simplify right side
    433,268.99x = 86,922,678,091.68
  5. Step 5: Solve for x
    x = 86,922,678,091.68/433,268.99
  6. Step 6: Final answer
    x = 200,620.58

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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.