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Finding the Fourth Proportional to 89,269.06, 123,037.89 and 85,064.89

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Solution

The fourth proportional to 89,269.06, 123,037.89 and 85,064.89 is: 117,243.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,269.06 : 123,037.89 = 85,064.89 : x
  2. Step 2: Convert to fraction form
    89,269.06/123,037.89 = 85,064.89/x
  3. Step 3: Cross multiply
    89,269.06x = 123,037.89 × 85,064.89
  4. Step 4: Simplify right side
    89,269.06x = 10,466,204,578.68
  5. Step 5: Solve for x
    x = 10,466,204,578.68/89,269.06
  6. Step 6: Final answer
    x = 117,243.37

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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.