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Finding the Fourth Proportional to 203,863.02, 281,326.53 and 113,213.89

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Solution

The fourth proportional to 203,863.02, 281,326.53 and 113,213.89 is: 156,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,863.02 : 281,326.53 = 113,213.89 : x
  2. Step 2: Convert to fraction form
    203,863.02/281,326.53 = 113,213.89/x
  3. Step 3: Cross multiply
    203,863.02x = 281,326.53 × 113,213.89
  4. Step 4: Simplify right side
    203,863.02x = 31,850,070,821.50
  5. Step 5: Solve for x
    x = 31,850,070,821.50/203,863.02
  6. Step 6: Final answer
    x = 156,232.70

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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.