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Finding the Fourth Proportional to 89,797.60, 123,921.66 and 49,511.44

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Solution

The fourth proportional to 89,797.60, 123,921.66 and 49,511.44 is: 68,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,797.60 : 123,921.66 = 49,511.44 : x
  2. Step 2: Convert to fraction form
    89,797.60/123,921.66 = 49,511.44/x
  3. Step 3: Cross multiply
    89,797.60x = 123,921.66 × 49,511.44
  4. Step 4: Simplify right side
    89,797.60x = 6,135,539,833.79
  5. Step 5: Solve for x
    x = 6,135,539,833.79/89,797.60
  6. Step 6: Final answer
    x = 68,326.32

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1.5x scale

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.