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Finding the Fourth Proportional to 308,227.03, 425,233.15 and 193,438.69

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Solution

The fourth proportional to 308,227.03, 425,233.15 and 193,438.69 is: 266,869.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,227.03 : 425,233.15 = 193,438.69 : x
  2. Step 2: Convert to fraction form
    308,227.03/425,233.15 = 193,438.69/x
  3. Step 3: Cross multiply
    308,227.03x = 425,233.15 × 193,438.69
  4. Step 4: Simplify right side
    308,227.03x = 82,256,543,480.57
  5. Step 5: Solve for x
    x = 82,256,543,480.57/308,227.03
  6. Step 6: Final answer
    x = 266,869.99

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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.