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Finding the Fourth Proportional to 195,893.78, 270,286.20 and 124,247.66

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Solution

The fourth proportional to 195,893.78, 270,286.20 and 124,247.66 is: 171,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,893.78 : 270,286.20 = 124,247.66 : x
  2. Step 2: Convert to fraction form
    195,893.78/270,286.20 = 124,247.66/x
  3. Step 3: Cross multiply
    195,893.78x = 270,286.20 × 124,247.66
  4. Step 4: Simplify right side
    195,893.78x = 33,582,426,528.86
  5. Step 5: Solve for x
    x = 33,582,426,528.86/195,893.78
  6. Step 6: Final answer
    x = 171,431.82

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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.