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Finding the Fourth Proportional to 198,482.67, 273,949.39 and 122,067.51

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Solution

The fourth proportional to 198,482.67, 273,949.39 and 122,067.51 is: 168,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,482.67 : 273,949.39 = 122,067.51 : x
  2. Step 2: Convert to fraction form
    198,482.67/273,949.39 = 122,067.51/x
  3. Step 3: Cross multiply
    198,482.67x = 273,949.39 × 122,067.51
  4. Step 4: Simplify right side
    198,482.67x = 33,440,319,028.59
  5. Step 5: Solve for x
    x = 33,440,319,028.59/198,482.67
  6. Step 6: Final answer
    x = 168,479.79

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1.5x scale

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.