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Finding the Fourth Proportional to 89,687.60, 134,520.60 and 37,091.60

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Solution

The fourth proportional to 89,687.60, 134,520.60 and 37,091.60 is: 55,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,687.60 : 134,520.60 = 37,091.60 : x
  2. Step 2: Convert to fraction form
    89,687.60/134,520.60 = 37,091.60/x
  3. Step 3: Cross multiply
    89,687.60x = 134,520.60 × 37,091.60
  4. Step 4: Simplify right side
    89,687.60x = 4,989,584,286.96
  5. Step 5: Solve for x
    x = 4,989,584,286.96/89,687.60
  6. Step 6: Final answer
    x = 55,632.93

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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.