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Finding the Fourth Proportional to 203,714.89, 281,122.32 and 113,065.54

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Solution

The fourth proportional to 203,714.89, 281,122.32 and 113,065.54 is: 156,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,714.89 : 281,122.32 = 113,065.54 : x
  2. Step 2: Convert to fraction form
    203,714.89/281,122.32 = 113,065.54/x
  3. Step 3: Cross multiply
    203,714.89x = 281,122.32 × 113,065.54
  4. Step 4: Simplify right side
    203,714.89x = 31,785,246,916.85
  5. Step 5: Solve for x
    x = 31,785,246,916.85/203,714.89
  6. Step 6: Final answer
    x = 156,028.10

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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.