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Finding the Fourth Proportional to 202,568.03, 279,546.35 and 111,923.15

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Solution

The fourth proportional to 202,568.03, 279,546.35 and 111,923.15 is: 154,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,568.03 : 279,546.35 = 111,923.15 : x
  2. Step 2: Convert to fraction form
    202,568.03/279,546.35 = 111,923.15/x
  3. Step 3: Cross multiply
    202,568.03x = 279,546.35 × 111,923.15
  4. Step 4: Simplify right side
    202,568.03x = 31,287,706,105.66
  5. Step 5: Solve for x
    x = 31,287,706,105.66/202,568.03
  6. Step 6: Final answer
    x = 154,455.31

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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.