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Finding the Fourth Proportional to 167,771.86, 231,521.72 and 91,292.47

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Solution

The fourth proportional to 167,771.86, 231,521.72 and 91,292.47 is: 125,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,771.86 : 231,521.72 = 91,292.47 : x
  2. Step 2: Convert to fraction form
    167,771.86/231,521.72 = 91,292.47/x
  3. Step 3: Cross multiply
    167,771.86x = 231,521.72 × 91,292.47
  4. Step 4: Simplify right side
    167,771.86x = 21,136,189,326.88
  5. Step 5: Solve for x
    x = 21,136,189,326.88/167,771.86
  6. Step 6: Final answer
    x = 125,981.73

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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.