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Finding the Fourth Proportional to 228,117.55, 341,896.06 and 128,067.97

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Solution

The fourth proportional to 228,117.55, 341,896.06 and 128,067.97 is: 191,944.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,117.55 : 341,896.06 = 128,067.97 : x
  2. Step 2: Convert to fraction form
    228,117.55/341,896.06 = 128,067.97/x
  3. Step 3: Cross multiply
    228,117.55x = 341,896.06 × 128,067.97
  4. Step 4: Simplify right side
    228,117.55x = 43,785,934,355.20
  5. Step 5: Solve for x
    x = 43,785,934,355.20/228,117.55
  6. Step 6: Final answer
    x = 191,944.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.