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Finding the Fourth Proportional to 276,168.87, 381,079.56 and 153,632.30

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Solution

The fourth proportional to 276,168.87, 381,079.56 and 153,632.30 is: 211,993.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,168.87 : 381,079.56 = 153,632.30 : x
  2. Step 2: Convert to fraction form
    276,168.87/381,079.56 = 153,632.30/x
  3. Step 3: Cross multiply
    276,168.87x = 381,079.56 × 153,632.30
  4. Step 4: Simplify right side
    276,168.87x = 58,546,127,380.39
  5. Step 5: Solve for x
    x = 58,546,127,380.39/276,168.87
  6. Step 6: Final answer
    x = 211,993.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.