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Finding the Fourth Proportional to 89,813.88, 134,647.74 and 33,622.50

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Solution

The fourth proportional to 89,813.88, 134,647.74 and 33,622.50 is: 50,406.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,813.88 : 134,647.74 = 33,622.50 : x
  2. Step 2: Convert to fraction form
    89,813.88/134,647.74 = 33,622.50/x
  3. Step 3: Cross multiply
    89,813.88x = 134,647.74 × 33,622.50
  4. Step 4: Simplify right side
    89,813.88x = 4,527,193,638.15
  5. Step 5: Solve for x
    x = 4,527,193,638.15/89,813.88
  6. Step 6: Final answer
    x = 50,406.39

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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.