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Finding the Fourth Proportional to 70,147.62, 96,734.58 and 43,284.43

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Solution

The fourth proportional to 70,147.62, 96,734.58 and 43,284.43 is: 59,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,147.62 : 96,734.58 = 43,284.43 : x
  2. Step 2: Convert to fraction form
    70,147.62/96,734.58 = 43,284.43/x
  3. Step 3: Cross multiply
    70,147.62x = 96,734.58 × 43,284.43
  4. Step 4: Simplify right side
    70,147.62x = 4,187,100,692.80
  5. Step 5: Solve for x
    x = 4,187,100,692.80/70,147.62
  6. Step 6: Final answer
    x = 59,689.85

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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.