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Finding the Fourth Proportional to 274,906.98, 411,660.45 and 181,128.42

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Solution

The fourth proportional to 274,906.98, 411,660.45 and 181,128.42 is: 271,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,906.98 : 411,660.45 = 181,128.42 : x
  2. Step 2: Convert to fraction form
    274,906.98/411,660.45 = 181,128.42/x
  3. Step 3: Cross multiply
    274,906.98x = 411,660.45 × 181,128.42
  4. Step 4: Simplify right side
    274,906.98x = 74,563,406,884.99
  5. Step 5: Solve for x
    x = 74,563,406,884.99/274,906.98
  6. Step 6: Final answer
    x = 271,231.41

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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.