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Finding the Fourth Proportional to 172,996.80, 259,446.60 and 54,704.40

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Solution

The fourth proportional to 172,996.80, 259,446.60 and 54,704.40 is: 82,041.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,996.80 : 259,446.60 = 54,704.40 : x
  2. Step 2: Convert to fraction form
    172,996.80/259,446.60 = 54,704.40/x
  3. Step 3: Cross multiply
    172,996.80x = 259,446.60 × 54,704.40
  4. Step 4: Simplify right side
    172,996.80x = 14,192,870,585.04
  5. Step 5: Solve for x
    x = 14,192,870,585.04/172,996.80
  6. Step 6: Final answer
    x = 82,041.23

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1.5x scale

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.