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Finding the Fourth Proportional to 129,996.30, 195,022.80 and 73,863.30

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Solution

The fourth proportional to 129,996.30, 195,022.80 and 73,863.30 is: 110,811.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,996.30 : 195,022.80 = 73,863.30 : x
  2. Step 2: Convert to fraction form
    129,996.30/195,022.80 = 73,863.30/x
  3. Step 3: Cross multiply
    129,996.30x = 195,022.80 × 73,863.30
  4. Step 4: Simplify right side
    129,996.30x = 14,405,027,583.24
  5. Step 5: Solve for x
    x = 14,405,027,583.24/129,996.30
  6. Step 6: Final answer
    x = 110,811.06

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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.