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Finding the Fourth Proportional to 371,099.63, 556,659.82 and 131,179.61

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Solution

The fourth proportional to 371,099.63, 556,659.82 and 131,179.61 is: 196,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,099.63 : 556,659.82 = 131,179.61 : x
  2. Step 2: Convert to fraction form
    371,099.63/556,659.82 = 131,179.61/x
  3. Step 3: Cross multiply
    371,099.63x = 556,659.82 × 131,179.61
  4. Step 4: Simplify right side
    371,099.63x = 73,022,419,153.97
  5. Step 5: Solve for x
    x = 73,022,419,153.97/371,099.63
  6. Step 6: Final answer
    x = 196,773.09

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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.