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Finding the Fourth Proportional to 69,709.55, 96,198.98 and 37,878.44

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Solution

The fourth proportional to 69,709.55, 96,198.98 and 37,878.44 is: 52,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,709.55 : 96,198.98 = 37,878.44 : x
  2. Step 2: Convert to fraction form
    69,709.55/96,198.98 = 37,878.44/x
  3. Step 3: Cross multiply
    69,709.55x = 96,198.98 × 37,878.44
  4. Step 4: Simplify right side
    69,709.55x = 3,643,867,627.18
  5. Step 5: Solve for x
    x = 3,643,867,627.18/69,709.55
  6. Step 6: Final answer
    x = 52,272.15

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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.