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Finding the Fourth Proportional to 203,703.59, 281,102.63 and 113,063.38

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Solution

The fourth proportional to 203,703.59, 281,102.63 and 113,063.38 is: 156,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,703.59 : 281,102.63 = 113,063.38 : x
  2. Step 2: Convert to fraction form
    203,703.59/281,102.63 = 113,063.38/x
  3. Step 3: Cross multiply
    203,703.59x = 281,102.63 × 113,063.38
  4. Step 4: Simplify right side
    203,703.59x = 31,782,412,206.62
  5. Step 5: Solve for x
    x = 31,782,412,206.62/203,703.59
  6. Step 6: Final answer
    x = 156,022.84

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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.