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Finding the Fourth Proportional to 216,680.60, 324,891.30 and 111,704.60

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Solution

The fourth proportional to 216,680.60, 324,891.30 and 111,704.60 is: 167,490.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,680.60 : 324,891.30 = 111,704.60 : x
  2. Step 2: Convert to fraction form
    216,680.60/324,891.30 = 111,704.60/x
  3. Step 3: Cross multiply
    216,680.60x = 324,891.30 × 111,704.60
  4. Step 4: Simplify right side
    216,680.60x = 36,291,852,709.98
  5. Step 5: Solve for x
    x = 36,291,852,709.98/216,680.60
  6. Step 6: Final answer
    x = 167,490.09

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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.