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Finding the Fourth Proportional to 131,704.33, 181,751.97 and 71,274.97

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Solution

The fourth proportional to 131,704.33, 181,751.97 and 71,274.97 is: 98,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,704.33 : 181,751.97 = 71,274.97 : x
  2. Step 2: Convert to fraction form
    131,704.33/181,751.97 = 71,274.97/x
  3. Step 3: Cross multiply
    131,704.33x = 181,751.97 × 71,274.97
  4. Step 4: Simplify right side
    131,704.33x = 12,954,366,209.19
  5. Step 5: Solve for x
    x = 12,954,366,209.19/131,704.33
  6. Step 6: Final answer
    x = 98,359.46

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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.