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Finding the Fourth Proportional to 239,067.75, 329,913.51 and 133,083.75

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Solution

The fourth proportional to 239,067.75, 329,913.51 and 133,083.75 is: 183,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,067.75 : 329,913.51 = 133,083.75 : x
  2. Step 2: Convert to fraction form
    239,067.75/329,913.51 = 133,083.75/x
  3. Step 3: Cross multiply
    239,067.75x = 329,913.51 × 133,083.75
  4. Step 4: Simplify right side
    239,067.75x = 43,906,127,086.46
  5. Step 5: Solve for x
    x = 43,906,127,086.46/239,067.75
  6. Step 6: Final answer
    x = 183,655.58

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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.