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Finding the Fourth Proportional to 351,390.93, 484,910.51 and 196,343.43

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Solution

The fourth proportional to 351,390.93, 484,910.51 and 196,343.43 is: 270,948.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,390.93 : 484,910.51 = 196,343.43 : x
  2. Step 2: Convert to fraction form
    351,390.93/484,910.51 = 196,343.43/x
  3. Step 3: Cross multiply
    351,390.93x = 484,910.51 × 196,343.43
  4. Step 4: Simplify right side
    351,390.93x = 95,208,991,794.73
  5. Step 5: Solve for x
    x = 95,208,991,794.73/351,390.93
  6. Step 6: Final answer
    x = 270,948.92

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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.