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Finding the Fourth Proportional to 203,667.32, 281,049 and 113,016.76

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Solution

The fourth proportional to 203,667.32, 281,049 and 113,016.76 is: 155,956.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,667.32 : 281,049 = 113,016.76 : x
  2. Step 2: Convert to fraction form
    203,667.32/281,049 = 113,016.76/x
  3. Step 3: Cross multiply
    203,667.32x = 281,049 × 113,016.76
  4. Step 4: Simplify right side
    203,667.32x = 31,763,247,381.24
  5. Step 5: Solve for x
    x = 31,763,247,381.24/203,667.32
  6. Step 6: Final answer
    x = 155,956.52

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1.5x scale

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.