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Finding the Fourth Proportional to 89,692.80, 134,490.60 and 37,107.60

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Solution

The fourth proportional to 89,692.80, 134,490.60 and 37,107.60 is: 55,641.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692.80 : 134,490.60 = 37,107.60 : x
  2. Step 2: Convert to fraction form
    89,692.80/134,490.60 = 37,107.60/x
  3. Step 3: Cross multiply
    89,692.80x = 134,490.60 × 37,107.60
  4. Step 4: Simplify right side
    89,692.80x = 4,990,623,388.56
  5. Step 5: Solve for x
    x = 4,990,623,388.56/89,692.80
  6. Step 6: Final answer
    x = 55,641.29

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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.