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Finding the Fourth Proportional to 351,593.93, 485,164.86 and 196,516.19

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Solution

The fourth proportional to 351,593.93, 485,164.86 and 196,516.19 is: 271,172.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,593.93 : 485,164.86 = 196,516.19 : x
  2. Step 2: Convert to fraction form
    351,593.93/485,164.86 = 196,516.19/x
  3. Step 3: Cross multiply
    351,593.93x = 485,164.86 × 196,516.19
  4. Step 4: Simplify right side
    351,593.93x = 95,342,747,383.26
  5. Step 5: Solve for x
    x = 95,342,747,383.26/351,593.93
  6. Step 6: Final answer
    x = 271,172.91

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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.