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Finding the Fourth Proportional to 287,252.73, 396,372.49 and 166,393.04

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Solution

The fourth proportional to 287,252.73, 396,372.49 and 166,393.04 is: 229,601.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,252.73 : 396,372.49 = 166,393.04 : x
  2. Step 2: Convert to fraction form
    287,252.73/396,372.49 = 166,393.04/x
  3. Step 3: Cross multiply
    287,252.73x = 396,372.49 × 166,393.04
  4. Step 4: Simplify right side
    287,252.73x = 65,953,621,185.62
  5. Step 5: Solve for x
    x = 65,953,621,185.62/287,252.73
  6. Step 6: Final answer
    x = 229,601.37

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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.