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Finding the Fourth Proportional to 295,634.60, 443,408.70 and 85,250.60

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Solution

The fourth proportional to 295,634.60, 443,408.70 and 85,250.60 is: 127,863.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,634.60 : 443,408.70 = 85,250.60 : x
  2. Step 2: Convert to fraction form
    295,634.60/443,408.70 = 85,250.60/x
  3. Step 3: Cross multiply
    295,634.60x = 443,408.70 × 85,250.60
  4. Step 4: Simplify right side
    295,634.60x = 37,800,857,720.22
  5. Step 5: Solve for x
    x = 37,800,857,720.22/295,634.60
  6. Step 6: Final answer
    x = 127,863.44

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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.