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Finding the Fourth Proportional to 73,994.73, 110,998.58 and 20,687.29

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Solution

The fourth proportional to 73,994.73, 110,998.58 and 20,687.29 is: 31,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,994.73 : 110,998.58 = 20,687.29 : x
  2. Step 2: Convert to fraction form
    73,994.73/110,998.58 = 20,687.29/x
  3. Step 3: Cross multiply
    73,994.73x = 110,998.58 × 20,687.29
  4. Step 4: Simplify right side
    73,994.73x = 2,296,259,814.05
  5. Step 5: Solve for x
    x = 2,296,259,814.05/73,994.73
  6. Step 6: Final answer
    x = 31,032.75

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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.