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Finding the Fourth Proportional to 54,321.67, 81,484.22 and 16,881.94

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Solution

The fourth proportional to 54,321.67, 81,484.22 and 16,881.94 is: 25,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.67 : 81,484.22 = 16,881.94 : x
  2. Step 2: Convert to fraction form
    54,321.67/81,484.22 = 16,881.94/x
  3. Step 3: Cross multiply
    54,321.67x = 81,484.22 × 16,881.94
  4. Step 4: Simplify right side
    54,321.67x = 1,375,611,712.99
  5. Step 5: Solve for x
    x = 1,375,611,712.99/54,321.67
  6. Step 6: Final answer
    x = 25,323.44

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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.