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Finding the Fourth Proportional to 73,796.05, 110,682.19 and 21,193.57

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Solution

The fourth proportional to 73,796.05, 110,682.19 and 21,193.57 is: 31,786.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,796.05 : 110,682.19 = 21,193.57 : x
  2. Step 2: Convert to fraction form
    73,796.05/110,682.19 = 21,193.57/x
  3. Step 3: Cross multiply
    73,796.05x = 110,682.19 × 21,193.57
  4. Step 4: Simplify right side
    73,796.05x = 2,345,750,741.52
  5. Step 5: Solve for x
    x = 2,345,750,741.52/73,796.05
  6. Step 6: Final answer
    x = 31,786.94

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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.