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Finding the Fourth Proportional to 202,674.33, 279,504.60 and 121,961.70

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Solution

The fourth proportional to 202,674.33, 279,504.60 and 121,961.70 is: 168,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,674.33 : 279,504.60 = 121,961.70 : x
  2. Step 2: Convert to fraction form
    202,674.33/279,504.60 = 121,961.70/x
  3. Step 3: Cross multiply
    202,674.33x = 279,504.60 × 121,961.70
  4. Step 4: Simplify right side
    202,674.33x = 34,088,856,173.82
  5. Step 5: Solve for x
    x = 34,088,856,173.82/202,674.33
  6. Step 6: Final answer
    x = 168,195.23

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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.