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Finding the Fourth Proportional to 171,161.56, 256,803.17 and 76,383.12

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Solution

The fourth proportional to 171,161.56, 256,803.17 and 76,383.12 is: 114,601.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,161.56 : 256,803.17 = 76,383.12 : x
  2. Step 2: Convert to fraction form
    171,161.56/256,803.17 = 76,383.12/x
  3. Step 3: Cross multiply
    171,161.56x = 256,803.17 × 76,383.12
  4. Step 4: Simplify right side
    171,161.56x = 19,615,427,350.49
  5. Step 5: Solve for x
    x = 19,615,427,350.49/171,161.56
  6. Step 6: Final answer
    x = 114,601.83

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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.