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Finding the Fourth Proportional to 68,537.97, 94,580.19 and 39,859.92

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Solution

The fourth proportional to 68,537.97, 94,580.19 and 39,859.92 is: 55,005.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,537.97 : 94,580.19 = 39,859.92 : x
  2. Step 2: Convert to fraction form
    68,537.97/94,580.19 = 39,859.92/x
  3. Step 3: Cross multiply
    68,537.97x = 94,580.19 × 39,859.92
  4. Step 4: Simplify right side
    68,537.97x = 3,769,958,806.98
  5. Step 5: Solve for x
    x = 3,769,958,806.98/68,537.97
  6. Step 6: Final answer
    x = 55,005.41

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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.