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Finding the Fourth Proportional to 88,109.97, 132,163.81 and 21,550.65

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Solution

The fourth proportional to 88,109.97, 132,163.81 and 21,550.65 is: 32,325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,109.97 : 132,163.81 = 21,550.65 : x
  2. Step 2: Convert to fraction form
    88,109.97/132,163.81 = 21,550.65/x
  3. Step 3: Cross multiply
    88,109.97x = 132,163.81 × 21,550.65
  4. Step 4: Simplify right side
    88,109.97x = 2,848,216,011.98
  5. Step 5: Solve for x
    x = 2,848,216,011.98/88,109.97
  6. Step 6: Final answer
    x = 32,325.69

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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.