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Finding the Fourth Proportional to 271,553.67, 407,330.51 and 84,579.75

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Solution

The fourth proportional to 271,553.67, 407,330.51 and 84,579.75 is: 126,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,553.67 : 407,330.51 = 84,579.75 : x
  2. Step 2: Convert to fraction form
    271,553.67/407,330.51 = 84,579.75/x
  3. Step 3: Cross multiply
    271,553.67x = 407,330.51 × 84,579.75
  4. Step 4: Simplify right side
    271,553.67x = 34,451,912,280.27
  5. Step 5: Solve for x
    x = 34,451,912,280.27/271,553.67
  6. Step 6: Final answer
    x = 126,869.63

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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.