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Finding the Fourth Proportional to 371,685.08, 556,149.80 and 222,006.80

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Solution

The fourth proportional to 371,685.08, 556,149.80 and 222,006.80 is: 332,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,685.08 : 556,149.80 = 222,006.80 : x
  2. Step 2: Convert to fraction form
    371,685.08/556,149.80 = 222,006.80/x
  3. Step 3: Cross multiply
    371,685.08x = 556,149.80 × 222,006.80
  4. Step 4: Simplify right side
    371,685.08x = 123,469,037,418.64
  5. Step 5: Solve for x
    x = 123,469,037,418.64/371,685.08
  6. Step 6: Final answer
    x = 332,187.23

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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.