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Finding the Fourth Proportional to 281,647.80, 422,625.30 and 115,452.60

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Solution

The fourth proportional to 281,647.80, 422,625.30 and 115,452.60 is: 173,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,647.80 : 422,625.30 = 115,452.60 : x
  2. Step 2: Convert to fraction form
    281,647.80/422,625.30 = 115,452.60/x
  3. Step 3: Cross multiply
    281,647.80x = 422,625.30 × 115,452.60
  4. Step 4: Simplify right side
    281,647.80x = 48,793,189,710.78
  5. Step 5: Solve for x
    x = 48,793,189,710.78/281,647.80
  6. Step 6: Final answer
    x = 173,241.86

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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.