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Finding the Fourth Proportional to 92,439.56, 138,603.72 and 44,960.96

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Solution

The fourth proportional to 92,439.56, 138,603.72 and 44,960.96 is: 67,414.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,439.56 : 138,603.72 = 44,960.96 : x
  2. Step 2: Convert to fraction form
    92,439.56/138,603.72 = 44,960.96/x
  3. Step 3: Cross multiply
    92,439.56x = 138,603.72 × 44,960.96
  4. Step 4: Simplify right side
    92,439.56x = 6,231,756,310.77
  5. Step 5: Solve for x
    x = 6,231,756,310.77/92,439.56
  6. Step 6: Final answer
    x = 67,414.39

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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.