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Finding the Fourth Proportional to 89,794.88, 123,871.41 and 68,537.24

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Solution

The fourth proportional to 89,794.88, 123,871.41 and 68,537.24 is: 94,546.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,794.88 : 123,871.41 = 68,537.24 : x
  2. Step 2: Convert to fraction form
    89,794.88/123,871.41 = 68,537.24/x
  3. Step 3: Cross multiply
    89,794.88x = 123,871.41 × 68,537.24
  4. Step 4: Simplify right side
    89,794.88x = 8,489,804,556.31
  5. Step 5: Solve for x
    x = 8,489,804,556.31/89,794.88
  6. Step 6: Final answer
    x = 94,546.64

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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.