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Finding the Fourth Proportional to 211,812.33, 317,791.41 and 132,834.09

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Solution

The fourth proportional to 211,812.33, 317,791.41 and 132,834.09 is: 199,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,812.33 : 317,791.41 = 132,834.09 : x
  2. Step 2: Convert to fraction form
    211,812.33/317,791.41 = 132,834.09/x
  3. Step 3: Cross multiply
    211,812.33x = 317,791.41 × 132,834.09
  4. Step 4: Simplify right side
    211,812.33x = 42,213,532,757.17
  5. Step 5: Solve for x
    x = 42,213,532,757.17/211,812.33
  6. Step 6: Final answer
    x = 199,296.86

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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.