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Finding the Fourth Proportional to 167,791.95, 251,727.32 and 55,472.15

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Solution

The fourth proportional to 167,791.95, 251,727.32 and 55,472.15 is: 83,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,791.95 : 251,727.32 = 55,472.15 : x
  2. Step 2: Convert to fraction form
    167,791.95/251,727.32 = 55,472.15/x
  3. Step 3: Cross multiply
    167,791.95x = 251,727.32 × 55,472.15
  4. Step 4: Simplify right side
    167,791.95x = 13,963,856,422.14
  5. Step 5: Solve for x
    x = 13,963,856,422.14/167,791.95
  6. Step 6: Final answer
    x = 83,221.25

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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.