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Finding the Fourth Proportional to 68,951.21, 95,163.73 and 64,448.71

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Solution

The fourth proportional to 68,951.21, 95,163.73 and 64,448.71 is: 88,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,951.21 : 95,163.73 = 64,448.71 : x
  2. Step 2: Convert to fraction form
    68,951.21/95,163.73 = 64,448.71/x
  3. Step 3: Cross multiply
    68,951.21x = 95,163.73 × 64,448.71
  4. Step 4: Simplify right side
    68,951.21x = 6,133,179,238.26
  5. Step 5: Solve for x
    x = 6,133,179,238.26/68,951.21
  6. Step 6: Final answer
    x = 88,949.56

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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.