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Finding the Fourth Proportional to 92,134.56, 127,178.52 and 54,408.96

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Solution

The fourth proportional to 92,134.56, 127,178.52 and 54,408.96 is: 75,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,134.56 : 127,178.52 = 54,408.96 : x
  2. Step 2: Convert to fraction form
    92,134.56/127,178.52 = 54,408.96/x
  3. Step 3: Cross multiply
    92,134.56x = 127,178.52 × 54,408.96
  4. Step 4: Simplify right side
    92,134.56x = 6,919,651,007.54
  5. Step 5: Solve for x
    x = 6,919,651,007.54/92,134.56
  6. Step 6: Final answer
    x = 75,103.75

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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.