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Finding the Fourth Proportional to 133,107.69, 199,606.44 and 54,168.33

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Solution

The fourth proportional to 133,107.69, 199,606.44 and 54,168.33 is: 81,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,107.69 : 199,606.44 = 54,168.33 : x
  2. Step 2: Convert to fraction form
    133,107.69/199,606.44 = 54,168.33/x
  3. Step 3: Cross multiply
    133,107.69x = 199,606.44 × 54,168.33
  4. Step 4: Simplify right side
    133,107.69x = 10,812,347,512.05
  5. Step 5: Solve for x
    x = 10,812,347,512.05/133,107.69
  6. Step 6: Final answer
    x = 81,230.07

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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.