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Finding the Fourth Proportional to 68,617.80, 94,739.22 and 52,674.12

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Solution

The fourth proportional to 68,617.80, 94,739.22 and 52,674.12 is: 72,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,617.80 : 94,739.22 = 52,674.12 : x
  2. Step 2: Convert to fraction form
    68,617.80/94,739.22 = 52,674.12/x
  3. Step 3: Cross multiply
    68,617.80x = 94,739.22 × 52,674.12
  4. Step 4: Simplify right side
    68,617.80x = 4,990,305,042.99
  5. Step 5: Solve for x
    x = 4,990,305,042.99/68,617.80
  6. Step 6: Final answer
    x = 72,726.10

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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.