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Finding the Fourth Proportional to 351,346.89, 484,854.69 and 190,198.41

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Solution

The fourth proportional to 351,346.89, 484,854.69 and 190,198.41 is: 262,471.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,346.89 : 484,854.69 = 190,198.41 : x
  2. Step 2: Convert to fraction form
    351,346.89/484,854.69 = 190,198.41/x
  3. Step 3: Cross multiply
    351,346.89x = 484,854.69 × 190,198.41
  4. Step 4: Simplify right side
    351,346.89x = 92,218,591,119.04
  5. Step 5: Solve for x
    x = 92,218,591,119.04/351,346.89
  6. Step 6: Final answer
    x = 262,471.63

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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.