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Finding the Fourth Proportional to 167,398.52, 231,011.58 and 91,947.02

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Solution

The fourth proportional to 167,398.52, 231,011.58 and 91,947.02 is: 126,887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,398.52 : 231,011.58 = 91,947.02 : x
  2. Step 2: Convert to fraction form
    167,398.52/231,011.58 = 91,947.02/x
  3. Step 3: Cross multiply
    167,398.52x = 231,011.58 × 91,947.02
  4. Step 4: Simplify right side
    167,398.52x = 21,240,826,366.49
  5. Step 5: Solve for x
    x = 21,240,826,366.49/167,398.52
  6. Step 6: Final answer
    x = 126,887.78

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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.