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Finding the Fourth Proportional to 167,790, 231,550.23 and 92,338.50

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Solution

The fourth proportional to 167,790, 231,550.23 and 92,338.50 is: 127,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,790 : 231,550.23 = 92,338.50 : x
  2. Step 2: Convert to fraction form
    167,790/231,550.23 = 92,338.50/x
  3. Step 3: Cross multiply
    167,790x = 231,550.23 × 92,338.50
  4. Step 4: Simplify right side
    167,790x = 21,381,000,912.86
  5. Step 5: Solve for x
    x = 21,381,000,912.86/167,790
  6. Step 6: Final answer
    x = 127,427.15

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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.