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Finding the Fourth Proportional to 68,584.38, 103,049.10 and 43,635.57

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Solution

The fourth proportional to 68,584.38, 103,049.10 and 43,635.57 is: 65,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,584.38 : 103,049.10 = 43,635.57 : x
  2. Step 2: Convert to fraction form
    68,584.38/103,049.10 = 43,635.57/x
  3. Step 3: Cross multiply
    68,584.38x = 103,049.10 × 43,635.57
  4. Step 4: Simplify right side
    68,584.38x = 4,496,606,216.49
  5. Step 5: Solve for x
    x = 4,496,606,216.49/68,584.38
  6. Step 6: Final answer
    x = 65,563.12

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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.