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Finding the Fourth Proportional to 89,608.68, 123,658.99 and 49,321.57

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Solution

The fourth proportional to 89,608.68, 123,658.99 and 49,321.57 is: 68,063.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,608.68 : 123,658.99 = 49,321.57 : x
  2. Step 2: Convert to fraction form
    89,608.68/123,658.99 = 49,321.57/x
  3. Step 3: Cross multiply
    89,608.68x = 123,658.99 × 49,321.57
  4. Step 4: Simplify right side
    89,608.68x = 6,099,055,531.41
  5. Step 5: Solve for x
    x = 6,099,055,531.41/89,608.68
  6. Step 6: Final answer
    x = 68,063.22

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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.