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Finding the Fourth Proportional to 308,369.92, 425,544.96 and 174,231.04

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Solution

The fourth proportional to 308,369.92, 425,544.96 and 174,231.04 is: 240,435.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,369.92 : 425,544.96 = 174,231.04 : x
  2. Step 2: Convert to fraction form
    308,369.92/425,544.96 = 174,231.04/x
  3. Step 3: Cross multiply
    308,369.92x = 425,544.96 × 174,231.04
  4. Step 4: Simplify right side
    308,369.92x = 74,143,140,947.56
  5. Step 5: Solve for x
    x = 74,143,140,947.56/308,369.92
  6. Step 6: Final answer
    x = 240,435.71

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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.