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Finding the Fourth Proportional to 276,758.83, 415,196.57 and 89,755.75

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Solution

The fourth proportional to 276,758.83, 415,196.57 and 89,755.75 is: 134,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,758.83 : 415,196.57 = 89,755.75 : x
  2. Step 2: Convert to fraction form
    276,758.83/415,196.57 = 89,755.75/x
  3. Step 3: Cross multiply
    276,758.83x = 415,196.57 × 89,755.75
  4. Step 4: Simplify right side
    276,758.83x = 37,266,279,537.78
  5. Step 5: Solve for x
    x = 37,266,279,537.78/276,758.83
  6. Step 6: Final answer
    x = 134,652.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.