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Finding the Fourth Proportional to 167,793.96, 231,560.54 and 91,317.98

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Solution

The fourth proportional to 167,793.96, 231,560.54 and 91,317.98 is: 126,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,793.96 : 231,560.54 = 91,317.98 : x
  2. Step 2: Convert to fraction form
    167,793.96/231,560.54 = 91,317.98/x
  3. Step 3: Cross multiply
    167,793.96x = 231,560.54 × 91,317.98
  4. Step 4: Simplify right side
    167,793.96x = 21,145,641,225.26
  5. Step 5: Solve for x
    x = 21,145,641,225.26/167,793.96
  6. Step 6: Final answer
    x = 126,021.47

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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.