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Finding the Fourth Proportional to 331,764.60, 498,165.30 and 191,796.60

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Solution

The fourth proportional to 331,764.60, 498,165.30 and 191,796.60 is: 287,994.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,764.60 : 498,165.30 = 191,796.60 : x
  2. Step 2: Convert to fraction form
    331,764.60/498,165.30 = 191,796.60/x
  3. Step 3: Cross multiply
    331,764.60x = 498,165.30 × 191,796.60
  4. Step 4: Simplify right side
    331,764.60x = 95,546,410,777.98
  5. Step 5: Solve for x
    x = 95,546,410,777.98/331,764.60
  6. Step 6: Final answer
    x = 287,994.59

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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.