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Finding the Fourth Proportional to 351,074.75, 484,495.52 and 198,103.97

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Solution

The fourth proportional to 351,074.75, 484,495.52 and 198,103.97 is: 273,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,074.75 : 484,495.52 = 198,103.97 : x
  2. Step 2: Convert to fraction form
    351,074.75/484,495.52 = 198,103.97/x
  3. Step 3: Cross multiply
    351,074.75x = 484,495.52 × 198,103.97
  4. Step 4: Simplify right side
    351,074.75x = 95,980,482,546.22
  5. Step 5: Solve for x
    x = 95,980,482,546.22/351,074.75
  6. Step 6: Final answer
    x = 273,390.45

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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.