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Finding the Fourth Proportional to 192,086.88, 287,981.09 and 124,476.09

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Solution

The fourth proportional to 192,086.88, 287,981.09 and 124,476.09 is: 186,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,086.88 : 287,981.09 = 124,476.09 : x
  2. Step 2: Convert to fraction form
    192,086.88/287,981.09 = 124,476.09/x
  3. Step 3: Cross multiply
    192,086.88x = 287,981.09 × 124,476.09
  4. Step 4: Simplify right side
    192,086.88x = 35,846,760,077.14
  5. Step 5: Solve for x
    x = 35,846,760,077.14/192,086.88
  6. Step 6: Final answer
    x = 186,617.43

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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.