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Finding the Fourth Proportional to 45,855.60, 68,938.92 and 36,613.68

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Solution

The fourth proportional to 45,855.60, 68,938.92 and 36,613.68 is: 55,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,855.60 : 68,938.92 = 36,613.68 : x
  2. Step 2: Convert to fraction form
    45,855.60/68,938.92 = 36,613.68/x
  3. Step 3: Cross multiply
    45,855.60x = 68,938.92 × 36,613.68
  4. Step 4: Simplify right side
    45,855.60x = 2,524,107,556.43
  5. Step 5: Solve for x
    x = 2,524,107,556.43/45,855.60
  6. Step 6: Final answer
    x = 55,044.70

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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.