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Finding the Fourth Proportional to 203,863.68, 281,116.80 and 143,414.40

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Solution

The fourth proportional to 203,863.68, 281,116.80 and 143,414.40 is: 197,760.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,863.68 : 281,116.80 = 143,414.40 : x
  2. Step 2: Convert to fraction form
    203,863.68/281,116.80 = 143,414.40/x
  3. Step 3: Cross multiply
    203,863.68x = 281,116.80 × 143,414.40
  4. Step 4: Simplify right side
    203,863.68x = 40,316,197,201.92
  5. Step 5: Solve for x
    x = 40,316,197,201.92/203,863.68
  6. Step 6: Final answer
    x = 197,760.57

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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.