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Finding the Fourth Proportional to 206,276.56, 284,661.32 and 125,704.40

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Solution

The fourth proportional to 206,276.56, 284,661.32 and 125,704.40 is: 173,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,276.56 : 284,661.32 = 125,704.40 : x
  2. Step 2: Convert to fraction form
    206,276.56/284,661.32 = 125,704.40/x
  3. Step 3: Cross multiply
    206,276.56x = 284,661.32 × 125,704.40
  4. Step 4: Simplify right side
    206,276.56x = 35,783,180,433.81
  5. Step 5: Solve for x
    x = 35,783,180,433.81/206,276.56
  6. Step 6: Final answer
    x = 173,471.87

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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.