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Finding the Fourth Proportional to 171,221.31, 256,826.84 and 66,062.97

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Solution

The fourth proportional to 171,221.31, 256,826.84 and 66,062.97 is: 99,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,221.31 : 256,826.84 = 66,062.97 : x
  2. Step 2: Convert to fraction form
    171,221.31/256,826.84 = 66,062.97/x
  3. Step 3: Cross multiply
    171,221.31x = 256,826.84 × 66,062.97
  4. Step 4: Simplify right side
    171,221.31x = 16,966,743,495.80
  5. Step 5: Solve for x
    x = 16,966,743,495.80/171,221.31
  6. Step 6: Final answer
    x = 99,092.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.