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Finding the Fourth Proportional to 351,863.42, 485,566.25 and 198,896.22

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Solution

The fourth proportional to 351,863.42, 485,566.25 and 198,896.22 is: 274,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,863.42 : 485,566.25 = 198,896.22 : x
  2. Step 2: Convert to fraction form
    351,863.42/485,566.25 = 198,896.22/x
  3. Step 3: Cross multiply
    351,863.42x = 485,566.25 × 198,896.22
  4. Step 4: Simplify right side
    351,863.42x = 96,577,290,690.09
  5. Step 5: Solve for x
    x = 96,577,290,690.09/351,863.42
  6. Step 6: Final answer
    x = 274,473.81

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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.