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Finding the Fourth Proportional to 171,013.68, 256,575.85 and 82,255.60

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Solution

The fourth proportional to 171,013.68, 256,575.85 and 82,255.60 is: 123,410.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,013.68 : 256,575.85 = 82,255.60 : x
  2. Step 2: Convert to fraction form
    171,013.68/256,575.85 = 82,255.60/x
  3. Step 3: Cross multiply
    171,013.68x = 256,575.85 × 82,255.60
  4. Step 4: Simplify right side
    171,013.68x = 21,104,798,793.10
  5. Step 5: Solve for x
    x = 21,104,798,793.10/171,013.68
  6. Step 6: Final answer
    x = 123,410.01

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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.