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Finding the Fourth Proportional to 192,888.82, 266,162.61 and 107,992.18

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Solution

The fourth proportional to 192,888.82, 266,162.61 and 107,992.18 is: 149,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,888.82 : 266,162.61 = 107,992.18 : x
  2. Step 2: Convert to fraction form
    192,888.82/266,162.61 = 107,992.18/x
  3. Step 3: Cross multiply
    192,888.82x = 266,162.61 × 107,992.18
  4. Step 4: Simplify right side
    192,888.82x = 28,743,480,488.39
  5. Step 5: Solve for x
    x = 28,743,480,488.39/192,888.82
  6. Step 6: Final answer
    x = 149,015.79

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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.