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Finding the Fourth Proportional to 206,717.42, 310,020.60 and 56,922.04

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Solution

The fourth proportional to 206,717.42, 310,020.60 and 56,922.04 is: 85,367.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,717.42 : 310,020.60 = 56,922.04 : x
  2. Step 2: Convert to fraction form
    206,717.42/310,020.60 = 56,922.04/x
  3. Step 3: Cross multiply
    206,717.42x = 310,020.60 × 56,922.04
  4. Step 4: Simplify right side
    206,717.42x = 17,647,004,218.97
  5. Step 5: Solve for x
    x = 17,647,004,218.97/206,717.42
  6. Step 6: Final answer
    x = 85,367.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.