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Finding the Fourth Proportional to 194,625.60, 291,477.60 and 131,956.80

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Solution

The fourth proportional to 194,625.60, 291,477.60 and 131,956.80 is: 197,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,625.60 : 291,477.60 = 131,956.80 : x
  2. Step 2: Convert to fraction form
    194,625.60/291,477.60 = 131,956.80/x
  3. Step 3: Cross multiply
    194,625.60x = 291,477.60 × 131,956.80
  4. Step 4: Simplify right side
    194,625.60x = 38,462,451,367.68
  5. Step 5: Solve for x
    x = 38,462,451,367.68/194,625.60
  6. Step 6: Final answer
    x = 197,622.78

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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.