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Finding the Fourth Proportional to 203,706.56, 281,101.86 and 113,062.57

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Solution

The fourth proportional to 203,706.56, 281,101.86 and 113,062.57 is: 156,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,706.56 : 281,101.86 = 113,062.57 : x
  2. Step 2: Convert to fraction form
    203,706.56/281,101.86 = 113,062.57/x
  3. Step 3: Cross multiply
    203,706.56x = 281,101.86 × 113,062.57
  4. Step 4: Simplify right side
    203,706.56x = 31,782,098,020.63
  5. Step 5: Solve for x
    x = 31,782,098,020.63/203,706.56
  6. Step 6: Final answer
    x = 156,019.02

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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.