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Finding the Fourth Proportional to 194,463.60, 291,234.60 and 131,794.80

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Solution

The fourth proportional to 194,463.60, 291,234.60 and 131,794.80 is: 197,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,463.60 : 291,234.60 = 131,794.80 : x
  2. Step 2: Convert to fraction form
    194,463.60/291,234.60 = 131,794.80/x
  3. Step 3: Cross multiply
    194,463.60x = 291,234.60 × 131,794.80
  4. Step 4: Simplify right side
    194,463.60x = 38,383,205,860.08
  5. Step 5: Solve for x
    x = 38,383,205,860.08/194,463.60
  6. Step 6: Final answer
    x = 197,379.90

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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.