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Finding the Fourth Proportional to 68,391.77, 102,600.95 and 26,268.75

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Solution

The fourth proportional to 68,391.77, 102,600.95 and 26,268.75 is: 39,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,391.77 : 102,600.95 = 26,268.75 : x
  2. Step 2: Convert to fraction form
    68,391.77/102,600.95 = 26,268.75/x
  3. Step 3: Cross multiply
    68,391.77x = 102,600.95 × 26,268.75
  4. Step 4: Simplify right side
    68,391.77x = 2,695,198,573.97
  5. Step 5: Solve for x
    x = 2,695,198,573.97/68,391.77
  6. Step 6: Final answer
    x = 39,408.23

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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.