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Finding the Fourth Proportional to 217,369.20, 325,891.80 and 112,263.60

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Solution

The fourth proportional to 217,369.20, 325,891.80 and 112,263.60 is: 168,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,369.20 : 325,891.80 = 112,263.60 : x
  2. Step 2: Convert to fraction form
    217,369.20/325,891.80 = 112,263.60/x
  3. Step 3: Cross multiply
    217,369.20x = 325,891.80 × 112,263.60
  4. Step 4: Simplify right side
    217,369.20x = 36,585,786,678.48
  5. Step 5: Solve for x
    x = 36,585,786,678.48/217,369.20
  6. Step 6: Final answer
    x = 168,311.73

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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.