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Finding the Fourth Proportional to 203,656.80, 281,039 and 113,016.72

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Solution

The fourth proportional to 203,656.80, 281,039 and 113,016.72 is: 155,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,656.80 : 281,039 = 113,016.72 : x
  2. Step 2: Convert to fraction form
    203,656.80/281,039 = 113,016.72/x
  3. Step 3: Cross multiply
    203,656.80x = 281,039 × 113,016.72
  4. Step 4: Simplify right side
    203,656.80x = 31,762,105,972.08
  5. Step 5: Solve for x
    x = 31,762,105,972.08/203,656.80
  6. Step 6: Final answer
    x = 155,958.98

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