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Finding the Fourth Proportional to 101,361.87, 151,937.28 and 38,138.58

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Solution

The fourth proportional to 101,361.87, 151,937.28 and 38,138.58 is: 57,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,361.87 : 151,937.28 = 38,138.58 : x
  2. Step 2: Convert to fraction form
    101,361.87/151,937.28 = 38,138.58/x
  3. Step 3: Cross multiply
    101,361.87x = 151,937.28 × 38,138.58
  4. Step 4: Simplify right side
    101,361.87x = 5,794,672,108.26
  5. Step 5: Solve for x
    x = 5,794,672,108.26/101,361.87
  6. Step 6: Final answer
    x = 57,168.16

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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.