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Finding the Fourth Proportional to 290,755.48, 401,183.76 and 169,873.42

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Solution

The fourth proportional to 290,755.48, 401,183.76 and 169,873.42 is: 234,390.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,755.48 : 401,183.76 = 169,873.42 : x
  2. Step 2: Convert to fraction form
    290,755.48/401,183.76 = 169,873.42/x
  3. Step 3: Cross multiply
    290,755.48x = 401,183.76 × 169,873.42
  4. Step 4: Simplify right side
    290,755.48x = 68,150,457,359.66
  5. Step 5: Solve for x
    x = 68,150,457,359.66/290,755.48
  6. Step 6: Final answer
    x = 234,390.96

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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.