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Finding the Fourth Proportional to 78,163.92, 107,859.82 and 44,175.32

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Solution

The fourth proportional to 78,163.92, 107,859.82 and 44,175.32 is: 60,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,163.92 : 107,859.82 = 44,175.32 : x
  2. Step 2: Convert to fraction form
    78,163.92/107,859.82 = 44,175.32/x
  3. Step 3: Cross multiply
    78,163.92x = 107,859.82 × 44,175.32
  4. Step 4: Simplify right side
    78,163.92x = 4,764,742,063.64
  5. Step 5: Solve for x
    x = 4,764,742,063.64/78,163.92
  6. Step 6: Final answer
    x = 60,958.33

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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.