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Finding the Fourth Proportional to 256,544.92, 354,033.30 and 143,369.56

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Solution

The fourth proportional to 256,544.92, 354,033.30 and 143,369.56 is: 197,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,544.92 : 354,033.30 = 143,369.56 : x
  2. Step 2: Convert to fraction form
    256,544.92/354,033.30 = 143,369.56/x
  3. Step 3: Cross multiply
    256,544.92x = 354,033.30 × 143,369.56
  4. Step 4: Simplify right side
    256,544.92x = 50,757,598,446.35
  5. Step 5: Solve for x
    x = 50,757,598,446.35/256,544.92
  6. Step 6: Final answer
    x = 197,850.73

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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.