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Finding the Fourth Proportional to 202,661.52, 279,711.54 and 133,629.60

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Solution

The fourth proportional to 202,661.52, 279,711.54 and 133,629.60 is: 184,434.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,661.52 : 279,711.54 = 133,629.60 : x
  2. Step 2: Convert to fraction form
    202,661.52/279,711.54 = 133,629.60/x
  3. Step 3: Cross multiply
    202,661.52x = 279,711.54 × 133,629.60
  4. Step 4: Simplify right side
    202,661.52x = 37,377,741,205.58
  5. Step 5: Solve for x
    x = 37,377,741,205.58/202,661.52
  6. Step 6: Final answer
    x = 184,434.33

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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.