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Finding the Fourth Proportional to 89,687.60, 134,466.60 and 50,256.80

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Solution

The fourth proportional to 89,687.60, 134,466.60 and 50,256.80 is: 75,348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,687.60 : 134,466.60 = 50,256.80 : x
  2. Step 2: Convert to fraction form
    89,687.60/134,466.60 = 50,256.80/x
  3. Step 3: Cross multiply
    89,687.60x = 134,466.60 × 50,256.80
  4. Step 4: Simplify right side
    89,687.60x = 6,757,861,022.88
  5. Step 5: Solve for x
    x = 6,757,861,022.88/89,687.60
  6. Step 6: Final answer
    x = 75,348.89

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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.