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Finding the Fourth Proportional to 168,472.62, 232,490.40 and 91,991.46

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Solution

The fourth proportional to 168,472.62, 232,490.40 and 91,991.46 is: 126,947.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,472.62 : 232,490.40 = 91,991.46 : x
  2. Step 2: Convert to fraction form
    168,472.62/232,490.40 = 91,991.46/x
  3. Step 3: Cross multiply
    168,472.62x = 232,490.40 × 91,991.46
  4. Step 4: Simplify right side
    168,472.62x = 21,387,131,331.98
  5. Step 5: Solve for x
    x = 21,387,131,331.98/168,472.62
  6. Step 6: Final answer
    x = 126,947.22

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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.