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Finding the Fourth Proportional to 68,551.66, 94,561.86 and 40,251.88

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Solution

The fourth proportional to 68,551.66, 94,561.86 and 40,251.88 is: 55,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,551.66 : 94,561.86 = 40,251.88 : x
  2. Step 2: Convert to fraction form
    68,551.66/94,561.86 = 40,251.88/x
  3. Step 3: Cross multiply
    68,551.66x = 94,561.86 × 40,251.88
  4. Step 4: Simplify right side
    68,551.66x = 3,806,292,641.30
  5. Step 5: Solve for x
    x = 3,806,292,641.30/68,551.66
  6. Step 6: Final answer
    x = 55,524.44

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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.