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Finding the Fourth Proportional to 73,786.82, 110,703.57 and 26,400.87

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Solution

The fourth proportional to 73,786.82, 110,703.57 and 26,400.87 is: 39,609.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,786.82 : 110,703.57 = 26,400.87 : x
  2. Step 2: Convert to fraction form
    73,786.82/110,703.57 = 26,400.87/x
  3. Step 3: Cross multiply
    73,786.82x = 110,703.57 × 26,400.87
  4. Step 4: Simplify right side
    73,786.82x = 2,922,670,560.11
  5. Step 5: Solve for x
    x = 2,922,670,560.11/73,786.82
  6. Step 6: Final answer
    x = 39,609.66

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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.