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Finding the Fourth Proportional to 89,900.76, 134,865.72 and 33,745.26

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Solution

The fourth proportional to 89,900.76, 134,865.72 and 33,745.26 is: 50,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,900.76 : 134,865.72 = 33,745.26 : x
  2. Step 2: Convert to fraction form
    89,900.76/134,865.72 = 33,745.26/x
  3. Step 3: Cross multiply
    89,900.76x = 134,865.72 × 33,745.26
  4. Step 4: Simplify right side
    89,900.76x = 4,551,078,786.49
  5. Step 5: Solve for x
    x = 4,551,078,786.49/89,900.76
  6. Step 6: Final answer
    x = 50,623.36

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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.