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Finding the Fourth Proportional to 203,714.65, 281,123.97 and 113,071.39

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Solution

The fourth proportional to 203,714.65, 281,123.97 and 113,071.39 is: 156,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,714.65 : 281,123.97 = 113,071.39 : x
  2. Step 2: Convert to fraction form
    203,714.65/281,123.97 = 113,071.39/x
  3. Step 3: Cross multiply
    203,714.65x = 281,123.97 × 113,071.39
  4. Step 4: Simplify right side
    203,714.65x = 31,787,078,504.71
  5. Step 5: Solve for x
    x = 31,787,078,504.71/203,714.65
  6. Step 6: Final answer
    x = 156,037.28

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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.