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Finding the Fourth Proportional to 110,912.70, 166,239.45 and 58,295.10

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Solution

The fourth proportional to 110,912.70, 166,239.45 and 58,295.10 is: 87,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,912.70 : 166,239.45 = 58,295.10 : x
  2. Step 2: Convert to fraction form
    110,912.70/166,239.45 = 58,295.10/x
  3. Step 3: Cross multiply
    110,912.70x = 166,239.45 × 58,295.10
  4. Step 4: Simplify right side
    110,912.70x = 9,690,945,361.70
  5. Step 5: Solve for x
    x = 9,690,945,361.70/110,912.70
  6. Step 6: Final answer
    x = 87,374.53

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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.