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Finding the Fourth Proportional to 192,980.58, 266,310.09 and 108,097.38

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Solution

The fourth proportional to 192,980.58, 266,310.09 and 108,097.38 is: 149,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,980.58 : 266,310.09 = 108,097.38 : x
  2. Step 2: Convert to fraction form
    192,980.58/266,310.09 = 108,097.38/x
  3. Step 3: Cross multiply
    192,980.58x = 266,310.09 × 108,097.38
  4. Step 4: Simplify right side
    192,980.58x = 28,787,422,996.56
  5. Step 5: Solve for x
    x = 28,787,422,996.56/192,980.58
  6. Step 6: Final answer
    x = 149,172.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.