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Finding the Fourth Proportional to 276,251.92, 381,089.64 and 174,403.60

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Solution

The fourth proportional to 276,251.92, 381,089.64 and 174,403.60 is: 240,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,251.92 : 381,089.64 = 174,403.60 : x
  2. Step 2: Convert to fraction form
    276,251.92/381,089.64 = 174,403.60/x
  3. Step 3: Cross multiply
    276,251.92x = 381,089.64 × 174,403.60
  4. Step 4: Simplify right side
    276,251.92x = 66,463,405,138.70
  5. Step 5: Solve for x
    x = 66,463,405,138.70/276,251.92
  6. Step 6: Final answer
    x = 240,589.84

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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.