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Finding the Fourth Proportional to 71,613.92, 107,383.98 and 32,137.20

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Solution

The fourth proportional to 71,613.92, 107,383.98 and 32,137.20 is: 48,189.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,613.92 : 107,383.98 = 32,137.20 : x
  2. Step 2: Convert to fraction form
    71,613.92/107,383.98 = 32,137.20/x
  3. Step 3: Cross multiply
    71,613.92x = 107,383.98 × 32,137.20
  4. Step 4: Simplify right side
    71,613.92x = 3,451,020,442.06
  5. Step 5: Solve for x
    x = 3,451,020,442.06/71,613.92
  6. Step 6: Final answer
    x = 48,189.24

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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.