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Finding the Fourth Proportional to 171,019.37, 256,584.39 and 82,261.28

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Solution

The fourth proportional to 171,019.37, 256,584.39 and 82,261.28 is: 123,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,019.37 : 256,584.39 = 82,261.28 : x
  2. Step 2: Convert to fraction form
    171,019.37/256,584.39 = 82,261.28/x
  3. Step 3: Cross multiply
    171,019.37x = 256,584.39 × 82,261.28
  4. Step 4: Simplify right side
    171,019.37x = 21,106,960,682.40
  5. Step 5: Solve for x
    x = 21,106,960,682.40/171,019.37
  6. Step 6: Final answer
    x = 123,418.54

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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.