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Finding the Fourth Proportional to 222,418.10, 333,627.15 and 82,147.70

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Solution

The fourth proportional to 222,418.10, 333,627.15 and 82,147.70 is: 123,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,418.10 : 333,627.15 = 82,147.70 : x
  2. Step 2: Convert to fraction form
    222,418.10/333,627.15 = 82,147.70/x
  3. Step 3: Cross multiply
    222,418.10x = 333,627.15 × 82,147.70
  4. Step 4: Simplify right side
    222,418.10x = 27,406,703,030.06
  5. Step 5: Solve for x
    x = 27,406,703,030.06/222,418.10
  6. Step 6: Final answer
    x = 123,221.55

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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.