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Finding the Fourth Proportional to 101,361.20, 152,027.40 and 31,247.60

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Solution

The fourth proportional to 101,361.20, 152,027.40 and 31,247.60 is: 46,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,361.20 : 152,027.40 = 31,247.60 : x
  2. Step 2: Convert to fraction form
    101,361.20/152,027.40 = 31,247.60/x
  3. Step 3: Cross multiply
    101,361.20x = 152,027.40 × 31,247.60
  4. Step 4: Simplify right side
    101,361.20x = 4,750,491,384.24
  5. Step 5: Solve for x
    x = 4,750,491,384.24/101,361.20
  6. Step 6: Final answer
    x = 46,866.96

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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.