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Finding the Fourth Proportional to 80,613.08, 120,968.22 and 28,059.48

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Solution

The fourth proportional to 80,613.08, 120,968.22 and 28,059.48 is: 42,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,613.08 : 120,968.22 = 28,059.48 : x
  2. Step 2: Convert to fraction form
    80,613.08/120,968.22 = 28,059.48/x
  3. Step 3: Cross multiply
    80,613.08x = 120,968.22 × 28,059.48
  4. Step 4: Simplify right side
    80,613.08x = 3,394,305,349.73
  5. Step 5: Solve for x
    x = 3,394,305,349.73/80,613.08
  6. Step 6: Final answer
    x = 42,106.14

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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.