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Finding the Fourth Proportional to 92,797.92, 139,127.76 and 55,853.28

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Solution

The fourth proportional to 92,797.92, 139,127.76 and 55,853.28 is: 83,738.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,797.92 : 139,127.76 = 55,853.28 : x
  2. Step 2: Convert to fraction form
    92,797.92/139,127.76 = 55,853.28/x
  3. Step 3: Cross multiply
    92,797.92x = 139,127.76 × 55,853.28
  4. Step 4: Simplify right side
    92,797.92x = 7,770,741,735.05
  5. Step 5: Solve for x
    x = 7,770,741,735.05/92,797.92
  6. Step 6: Final answer
    x = 83,738.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.