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Finding the Fourth Proportional to 133,906.80, 200,568.60 and 119,132.40

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Solution

The fourth proportional to 133,906.80, 200,568.60 and 119,132.40 is: 178,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,906.80 : 200,568.60 = 119,132.40 : x
  2. Step 2: Convert to fraction form
    133,906.80/200,568.60 = 119,132.40/x
  3. Step 3: Cross multiply
    133,906.80x = 200,568.60 × 119,132.40
  4. Step 4: Simplify right side
    133,906.80x = 23,894,218,682.64
  5. Step 5: Solve for x
    x = 23,894,218,682.64/133,906.80
  6. Step 6: Final answer
    x = 178,439.17

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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.