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Finding the Fourth Proportional to 203,736.62, 281,142.46 and 113,085.46

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Solution

The fourth proportional to 203,736.62, 281,142.46 and 113,085.46 is: 156,050.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,736.62 : 281,142.46 = 113,085.46 : x
  2. Step 2: Convert to fraction form
    203,736.62/281,142.46 = 113,085.46/x
  3. Step 3: Cross multiply
    203,736.62x = 281,142.46 × 113,085.46
  4. Step 4: Simplify right side
    203,736.62x = 31,793,124,414.63
  5. Step 5: Solve for x
    x = 31,793,124,414.63/203,736.62
  6. Step 6: Final answer
    x = 156,050.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.