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Finding the Fourth Proportional to 68,679.91, 102,886.21 and 50,635.27

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Solution

The fourth proportional to 68,679.91, 102,886.21 and 50,635.27 is: 75,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,679.91 : 102,886.21 = 50,635.27 : x
  2. Step 2: Convert to fraction form
    68,679.91/102,886.21 = 50,635.27/x
  3. Step 3: Cross multiply
    68,679.91x = 102,886.21 × 50,635.27
  4. Step 4: Simplify right side
    68,679.91x = 5,209,670,255.02
  5. Step 5: Solve for x
    x = 5,209,670,255.02/68,679.91
  6. Step 6: Final answer
    x = 75,854.36

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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.