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Finding the Fourth Proportional to 55,112.60, 82,523.10 and 43,351.40

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Solution

The fourth proportional to 55,112.60, 82,523.10 and 43,351.40 is: 64,912.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112.60 : 82,523.10 = 43,351.40 : x
  2. Step 2: Convert to fraction form
    55,112.60/82,523.10 = 43,351.40/x
  3. Step 3: Cross multiply
    55,112.60x = 82,523.10 × 43,351.40
  4. Step 4: Simplify right side
    55,112.60x = 3,577,491,917.34
  5. Step 5: Solve for x
    x = 3,577,491,917.34/55,112.60
  6. Step 6: Final answer
    x = 64,912.41

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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.