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Finding the Fourth Proportional to 171,308.52, 256,815.01 and 82,439.77

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Solution

The fourth proportional to 171,308.52, 256,815.01 and 82,439.77 is: 123,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,308.52 : 256,815.01 = 82,439.77 : x
  2. Step 2: Convert to fraction form
    171,308.52/256,815.01 = 82,439.77/x
  3. Step 3: Cross multiply
    171,308.52x = 256,815.01 × 82,439.77
  4. Step 4: Simplify right side
    171,308.52x = 21,171,770,356.95
  5. Step 5: Solve for x
    x = 21,171,770,356.95/171,308.52
  6. Step 6: Final answer
    x = 123,588.54

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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.