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Finding the Fourth Proportional to 192,998.89, 266,338.29 and 108,116.56

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Solution

The fourth proportional to 192,998.89, 266,338.29 and 108,116.56 is: 149,200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,998.89 : 266,338.29 = 108,116.56 : x
  2. Step 2: Convert to fraction form
    192,998.89/266,338.29 = 108,116.56/x
  3. Step 3: Cross multiply
    192,998.89x = 266,338.29 × 108,116.56
  4. Step 4: Simplify right side
    192,998.89x = 28,795,579,711.08
  5. Step 5: Solve for x
    x = 28,795,579,711.08/192,998.89
  6. Step 6: Final answer
    x = 149,200.75

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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.