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Finding the Fourth Proportional to 132,911.40, 199,475.90 and 131,874.60

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Solution

The fourth proportional to 132,911.40, 199,475.90 and 131,874.60 is: 197,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,911.40 : 199,475.90 = 131,874.60 : x
  2. Step 2: Convert to fraction form
    132,911.40/199,475.90 = 131,874.60/x
  3. Step 3: Cross multiply
    132,911.40x = 199,475.90 × 131,874.60
  4. Step 4: Simplify right side
    132,911.40x = 26,305,804,522.14
  5. Step 5: Solve for x
    x = 26,305,804,522.14/132,911.40
  6. Step 6: Final answer
    x = 197,919.85

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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.