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Finding the Fourth Proportional to 367,613.89, 551,119.51 and 130,821.73

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Solution

The fourth proportional to 367,613.89, 551,119.51 and 130,821.73 is: 196,125.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,613.89 : 551,119.51 = 130,821.73 : x
  2. Step 2: Convert to fraction form
    367,613.89/551,119.51 = 130,821.73/x
  3. Step 3: Cross multiply
    367,613.89x = 551,119.51 × 130,821.73
  4. Step 4: Simplify right side
    367,613.89x = 72,098,407,734.95
  5. Step 5: Solve for x
    x = 72,098,407,734.95/367,613.89
  6. Step 6: Final answer
    x = 196,125.36

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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.