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Finding the Fourth Proportional to 68,167.94, 102,217.91 and 43,188.95

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Solution

The fourth proportional to 68,167.94, 102,217.91 and 43,188.95 is: 64,761.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,167.94 : 102,217.91 = 43,188.95 : x
  2. Step 2: Convert to fraction form
    68,167.94/102,217.91 = 43,188.95/x
  3. Step 3: Cross multiply
    68,167.94x = 102,217.91 × 43,188.95
  4. Step 4: Simplify right side
    68,167.94x = 4,414,684,243.69
  5. Step 5: Solve for x
    x = 4,414,684,243.69/68,167.94
  6. Step 6: Final answer
    x = 64,761.89

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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.