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Finding the Fourth Proportional to 188,793.60, 283,190.40 and 104,812.80

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Solution

The fourth proportional to 188,793.60, 283,190.40 and 104,812.80 is: 157,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,793.60 : 283,190.40 = 104,812.80 : x
  2. Step 2: Convert to fraction form
    188,793.60/283,190.40 = 104,812.80/x
  3. Step 3: Cross multiply
    188,793.60x = 283,190.40 × 104,812.80
  4. Step 4: Simplify right side
    188,793.60x = 29,681,978,757.12
  5. Step 5: Solve for x
    x = 29,681,978,757.12/188,793.60
  6. Step 6: Final answer
    x = 157,219.20

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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.