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Finding the Fourth Proportional to 203,710.96, 281,124.12 and 113,072.76

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Solution

The fourth proportional to 203,710.96, 281,124.12 and 113,072.76 is: 156,042.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,710.96 : 281,124.12 = 113,072.76 : x
  2. Step 2: Convert to fraction form
    203,710.96/281,124.12 = 113,072.76/x
  3. Step 3: Cross multiply
    203,710.96x = 281,124.12 × 113,072.76
  4. Step 4: Simplify right side
    203,710.96x = 31,787,480,150.97
  5. Step 5: Solve for x
    x = 31,787,480,150.97/203,710.96
  6. Step 6: Final answer
    x = 156,042.07

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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.