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Finding the Fourth Proportional to 92,640.44, 127,844.81 and 54,400.44

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Solution

The fourth proportional to 92,640.44, 127,844.81 and 54,400.44 is: 75,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,640.44 : 127,844.81 = 54,400.44 : x
  2. Step 2: Convert to fraction form
    92,640.44/127,844.81 = 54,400.44/x
  3. Step 3: Cross multiply
    92,640.44x = 127,844.81 × 54,400.44
  4. Step 4: Simplify right side
    92,640.44x = 6,954,813,608.01
  5. Step 5: Solve for x
    x = 6,954,813,608.01/92,640.44
  6. Step 6: Final answer
    x = 75,073.20

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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.