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Finding the Fourth Proportional to 192,085.88, 287,979.59 and 124,475.09

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Solution

The fourth proportional to 192,085.88, 287,979.59 and 124,475.09 is: 186,615.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,085.88 : 287,979.59 = 124,475.09 : x
  2. Step 2: Convert to fraction form
    192,085.88/287,979.59 = 124,475.09/x
  3. Step 3: Cross multiply
    192,085.88x = 287,979.59 × 124,475.09
  4. Step 4: Simplify right side
    192,085.88x = 35,846,283,943.52
  5. Step 5: Solve for x
    x = 35,846,283,943.52/192,085.88
  6. Step 6: Final answer
    x = 186,615.93

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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.