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Finding the Fourth Proportional to 202,480.97, 279,422.66 and 111,843.18

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Solution

The fourth proportional to 202,480.97, 279,422.66 and 111,843.18 is: 154,343.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,480.97 : 279,422.66 = 111,843.18 : x
  2. Step 2: Convert to fraction form
    202,480.97/279,422.66 = 111,843.18/x
  3. Step 3: Cross multiply
    202,480.97x = 279,422.66 × 111,843.18
  4. Step 4: Simplify right side
    202,480.97x = 31,251,519,138.07
  5. Step 5: Solve for x
    x = 31,251,519,138.07/202,480.97
  6. Step 6: Final answer
    x = 154,343.00

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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.