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Finding the Fourth Proportional to 129,690.67, 194,553.02 and 50,794.65

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Solution

The fourth proportional to 129,690.67, 194,553.02 and 50,794.65 is: 76,198.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,690.67 : 194,553.02 = 50,794.65 : x
  2. Step 2: Convert to fraction form
    129,690.67/194,553.02 = 50,794.65/x
  3. Step 3: Cross multiply
    129,690.67x = 194,553.02 × 50,794.65
  4. Step 4: Simplify right side
    129,690.67x = 9,882,252,557.34
  5. Step 5: Solve for x
    x = 9,882,252,557.34/129,690.67
  6. Step 6: Final answer
    x = 76,198.64

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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.