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Finding the Fourth Proportional to 192,791.31, 266,051.92 and 107,908.38

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Solution

The fourth proportional to 192,791.31, 266,051.92 and 107,908.38 is: 148,913.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,791.31 : 266,051.92 = 107,908.38 : x
  2. Step 2: Convert to fraction form
    192,791.31/266,051.92 = 107,908.38/x
  3. Step 3: Cross multiply
    192,791.31x = 266,051.92 × 107,908.38
  4. Step 4: Simplify right side
    192,791.31x = 28,709,231,683.09
  5. Step 5: Solve for x
    x = 28,709,231,683.09/192,791.31
  6. Step 6: Final answer
    x = 148,913.52

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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.