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Finding the Fourth Proportional to 172,791.16, 238,422.83 and 96,293.48

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Solution

The fourth proportional to 172,791.16, 238,422.83 and 96,293.48 is: 132,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,791.16 : 238,422.83 = 96,293.48 : x
  2. Step 2: Convert to fraction form
    172,791.16/238,422.83 = 96,293.48/x
  3. Step 3: Cross multiply
    172,791.16x = 238,422.83 × 96,293.48
  4. Step 4: Simplify right side
    172,791.16x = 22,958,562,338.57
  5. Step 5: Solve for x
    x = 22,958,562,338.57/172,791.16
  6. Step 6: Final answer
    x = 132,868.85

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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.