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Finding the Fourth Proportional to 203,165.20, 304,164.60 and 124,433.20

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Solution

The fourth proportional to 203,165.20, 304,164.60 and 124,433.20 is: 186,292.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,165.20 : 304,164.60 = 124,433.20 : x
  2. Step 2: Convert to fraction form
    203,165.20/304,164.60 = 124,433.20/x
  3. Step 3: Cross multiply
    203,165.20x = 304,164.60 × 124,433.20
  4. Step 4: Simplify right side
    203,165.20x = 37,848,174,504.72
  5. Step 5: Solve for x
    x = 37,848,174,504.72/203,165.20
  6. Step 6: Final answer
    x = 186,292.61

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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.