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Finding the Fourth Proportional to 516,135.42, 774,202.85 and 161,179.86

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Solution

The fourth proportional to 516,135.42, 774,202.85 and 161,179.86 is: 241,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,135.42 : 774,202.85 = 161,179.86 : x
  2. Step 2: Convert to fraction form
    516,135.42/774,202.85 = 161,179.86/x
  3. Step 3: Cross multiply
    516,135.42x = 774,202.85 × 161,179.86
  4. Step 4: Simplify right side
    516,135.42x = 124,785,906,168.70
  5. Step 5: Solve for x
    x = 124,785,906,168.70/516,135.42
  6. Step 6: Final answer
    x = 241,769.70

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Similar ratio
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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.