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Finding the Fourth Proportional to 194,910.52, 268,976.55 and 105,486.52

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Solution

The fourth proportional to 194,910.52, 268,976.55 and 105,486.52 is: 145,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,910.52 : 268,976.55 = 105,486.52 : x
  2. Step 2: Convert to fraction form
    194,910.52/268,976.55 = 105,486.52/x
  3. Step 3: Cross multiply
    194,910.52x = 268,976.55 × 105,486.52
  4. Step 4: Simplify right side
    194,910.52x = 28,373,400,221.11
  5. Step 5: Solve for x
    x = 28,373,400,221.11/194,910.52
  6. Step 6: Final answer
    x = 145,571.42

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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.