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Finding the Fourth Proportional to 67,212.16, 92,757.36 and 44,512

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Solution

The fourth proportional to 67,212.16, 92,757.36 and 44,512 is: 61,429.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,212.16 : 92,757.36 = 44,512 : x
  2. Step 2: Convert to fraction form
    67,212.16/92,757.36 = 44,512/x
  3. Step 3: Cross multiply
    67,212.16x = 92,757.36 × 44,512
  4. Step 4: Simplify right side
    67,212.16x = 4,128,815,608.32
  5. Step 5: Solve for x
    x = 4,128,815,608.32/67,212.16
  6. Step 6: Final answer
    x = 61,429.59

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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.