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Finding the Fourth Proportional to 167,332.56, 230,919.72 and 91,881

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Solution

The fourth proportional to 167,332.56, 230,919.72 and 91,881 is: 126,796.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,332.56 : 230,919.72 = 91,881 : x
  2. Step 2: Convert to fraction form
    167,332.56/230,919.72 = 91,881/x
  3. Step 3: Cross multiply
    167,332.56x = 230,919.72 × 91,881
  4. Step 4: Simplify right side
    167,332.56x = 21,217,134,793.32
  5. Step 5: Solve for x
    x = 21,217,134,793.32/167,332.56
  6. Step 6: Final answer
    x = 126,796.21

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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.