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Finding the Fourth Proportional to 367,611.89, 551,116.51 and 130,819.73

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Solution

The fourth proportional to 367,611.89, 551,116.51 and 130,819.73 is: 196,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,611.89 : 551,116.51 = 130,819.73 : x
  2. Step 2: Convert to fraction form
    367,611.89/551,116.51 = 130,819.73/x
  3. Step 3: Cross multiply
    367,611.89x = 551,116.51 × 130,819.73
  4. Step 4: Simplify right side
    367,611.89x = 72,096,909,954.11
  5. Step 5: Solve for x
    x = 72,096,909,954.11/367,611.89
  6. Step 6: Final answer
    x = 196,122.36

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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.