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Finding the Fourth Proportional to 217,751.40, 326,627.10 and 133,770.60

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Solution

The fourth proportional to 217,751.40, 326,627.10 and 133,770.60 is: 200,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,751.40 : 326,627.10 = 133,770.60 : x
  2. Step 2: Convert to fraction form
    217,751.40/326,627.10 = 133,770.60/x
  3. Step 3: Cross multiply
    217,751.40x = 326,627.10 × 133,770.60
  4. Step 4: Simplify right side
    217,751.40x = 43,693,103,143.26
  5. Step 5: Solve for x
    x = 43,693,103,143.26/217,751.40
  6. Step 6: Final answer
    x = 200,655.90

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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.