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Finding the Fourth Proportional to 290,469.66, 400,800.99 and 181,561.11

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Solution

The fourth proportional to 290,469.66, 400,800.99 and 181,561.11 is: 250,524.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,469.66 : 400,800.99 = 181,561.11 : x
  2. Step 2: Convert to fraction form
    290,469.66/400,800.99 = 181,561.11/x
  3. Step 3: Cross multiply
    290,469.66x = 400,800.99 × 181,561.11
  4. Step 4: Simplify right side
    290,469.66x = 72,769,872,633.50
  5. Step 5: Solve for x
    x = 72,769,872,633.50/290,469.66
  6. Step 6: Final answer
    x = 250,524.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.