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Finding the Fourth Proportional to 89,216.40, 133,824.60 and 36,663.60

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Solution

The fourth proportional to 89,216.40, 133,824.60 and 36,663.60 is: 54,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,216.40 : 133,824.60 = 36,663.60 : x
  2. Step 2: Convert to fraction form
    89,216.40/133,824.60 = 36,663.60/x
  3. Step 3: Cross multiply
    89,216.40x = 133,824.60 × 36,663.60
  4. Step 4: Simplify right side
    89,216.40x = 4,906,491,604.56
  5. Step 5: Solve for x
    x = 4,906,491,604.56/89,216.40
  6. Step 6: Final answer
    x = 54,995.40

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1.5x scale

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.