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Finding the Fourth Proportional to 203,400.03, 280,694.88 and 111,527.94

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Solution

The fourth proportional to 203,400.03, 280,694.88 and 111,527.94 is: 153,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,400.03 : 280,694.88 = 111,527.94 : x
  2. Step 2: Convert to fraction form
    203,400.03/280,694.88 = 111,527.94/x
  3. Step 3: Cross multiply
    203,400.03x = 280,694.88 × 111,527.94
  4. Step 4: Simplify right side
    203,400.03x = 31,305,321,734.95
  5. Step 5: Solve for x
    x = 31,305,321,734.95/203,400.03
  6. Step 6: Final answer
    x = 153,910.11

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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.