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Finding the Fourth Proportional to 67,179.44, 100,782.12 and 37,630.64

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Solution

The fourth proportional to 67,179.44, 100,782.12 and 37,630.64 is: 56,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,179.44 : 100,782.12 = 37,630.64 : x
  2. Step 2: Convert to fraction form
    67,179.44/100,782.12 = 37,630.64/x
  3. Step 3: Cross multiply
    67,179.44x = 100,782.12 × 37,630.64
  4. Step 4: Simplify right side
    67,179.44x = 3,792,495,676.16
  5. Step 5: Solve for x
    x = 3,792,495,676.16/67,179.44
  6. Step 6: Final answer
    x = 56,453.22

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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.