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Finding the Fourth Proportional to 194,660.80, 291,991.20 and 193,348.60

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Solution

The fourth proportional to 194,660.80, 291,991.20 and 193,348.60 is: 290,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,660.80 : 291,991.20 = 193,348.60 : x
  2. Step 2: Convert to fraction form
    194,660.80/291,991.20 = 193,348.60/x
  3. Step 3: Cross multiply
    194,660.80x = 291,991.20 × 193,348.60
  4. Step 4: Simplify right side
    194,660.80x = 56,456,089,732.32
  5. Step 5: Solve for x
    x = 56,456,089,732.32/194,660.80
  6. Step 6: Final answer
    x = 290,022.90

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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.