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Finding the Fourth Proportional to 167,674.10, 231,391.22 and 91,194.10

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Solution

The fourth proportional to 167,674.10, 231,391.22 and 91,194.10 is: 125,848.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,674.10 : 231,391.22 = 91,194.10 : x
  2. Step 2: Convert to fraction form
    167,674.10/231,391.22 = 91,194.10/x
  3. Step 3: Cross multiply
    167,674.10x = 231,391.22 × 91,194.10
  4. Step 4: Simplify right side
    167,674.10x = 21,101,513,021.35
  5. Step 5: Solve for x
    x = 21,101,513,021.35/167,674.10
  6. Step 6: Final answer
    x = 125,848.38

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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.