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Finding the Fourth Proportional to 167,791.80, 231,555.06 and 91,313.22

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Solution

The fourth proportional to 167,791.80, 231,555.06 and 91,313.22 is: 126,013.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,791.80 : 231,555.06 = 91,313.22 : x
  2. Step 2: Convert to fraction form
    167,791.80/231,555.06 = 91,313.22/x
  3. Step 3: Cross multiply
    167,791.80x = 231,555.06 × 91,313.22
  4. Step 4: Simplify right side
    167,791.80x = 21,144,038,135.89
  5. Step 5: Solve for x
    x = 21,144,038,135.89/167,791.80
  6. Step 6: Final answer
    x = 126,013.54

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1.5x scale

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.