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Finding the Fourth Proportional to 171,093.88, 256,620.78 and 65,839.24

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Solution

The fourth proportional to 171,093.88, 256,620.78 and 65,839.24 is: 98,751.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,093.88 : 256,620.78 = 65,839.24 : x
  2. Step 2: Convert to fraction form
    171,093.88/256,620.78 = 65,839.24/x
  3. Step 3: Cross multiply
    171,093.88x = 256,620.78 × 65,839.24
  4. Step 4: Simplify right side
    171,093.88x = 16,895,717,123.41
  5. Step 5: Solve for x
    x = 16,895,717,123.41/171,093.88
  6. Step 6: Final answer
    x = 98,751.15

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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.