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Finding the Fourth Proportional to 203,672.58, 281,101.79 and 113,057.57

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Solution

The fourth proportional to 203,672.58, 281,101.79 and 113,057.57 is: 156,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,672.58 : 281,101.79 = 113,057.57 : x
  2. Step 2: Convert to fraction form
    203,672.58/281,101.79 = 113,057.57/x
  3. Step 3: Cross multiply
    203,672.58x = 281,101.79 × 113,057.57
  4. Step 4: Simplify right side
    203,672.58x = 31,780,686,285.45
  5. Step 5: Solve for x
    x = 31,780,686,285.45/203,672.58
  6. Step 6: Final answer
    x = 156,038.12

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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.