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Finding the Fourth Proportional to 134,495.20, 201,694.20 and 54,499.60

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Solution

The fourth proportional to 134,495.20, 201,694.20 and 54,499.60 is: 81,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,495.20 : 201,694.20 = 54,499.60 : x
  2. Step 2: Convert to fraction form
    134,495.20/201,694.20 = 54,499.60/x
  3. Step 3: Cross multiply
    134,495.20x = 201,694.20 × 54,499.60
  4. Step 4: Simplify right side
    134,495.20x = 10,992,253,222.32
  5. Step 5: Solve for x
    x = 10,992,253,222.32/134,495.20
  6. Step 6: Final answer
    x = 81,729.71

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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.