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Finding the Fourth Proportional to 308,349.39, 425,593.26 and 200,731.98

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Solution

The fourth proportional to 308,349.39, 425,593.26 and 200,731.98 is: 277,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,349.39 : 425,593.26 = 200,731.98 : x
  2. Step 2: Convert to fraction form
    308,349.39/425,593.26 = 200,731.98/x
  3. Step 3: Cross multiply
    308,349.39x = 425,593.26 × 200,731.98
  4. Step 4: Simplify right side
    308,349.39x = 85,430,177,754.45
  5. Step 5: Solve for x
    x = 85,430,177,754.45/308,349.39
  6. Step 6: Final answer
    x = 277,056.42

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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.