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Finding the Fourth Proportional to 92,378.00, 127,481.72 and 49,936.52

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Solution

The fourth proportional to 92,378.00, 127,481.72 and 49,936.52 is: 68,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,378.00 : 127,481.72 = 49,936.52 : x
  2. Step 2: Convert to fraction form
    92,378.00/127,481.72 = 49,936.52/x
  3. Step 3: Cross multiply
    92,378.00x = 127,481.72 × 49,936.52
  4. Step 4: Simplify right side
    92,378.00x = 6,365,993,529.44
  5. Step 5: Solve for x
    x = 6,365,993,529.44/92,378.00
  6. Step 6: Final answer
    x = 68,912.45

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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.