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Finding the Fourth Proportional to 73,694.64, 110,541.96 and 18,290.64

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Solution

The fourth proportional to 73,694.64, 110,541.96 and 18,290.64 is: 27,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,694.64 : 110,541.96 = 18,290.64 : x
  2. Step 2: Convert to fraction form
    73,694.64/110,541.96 = 18,290.64/x
  3. Step 3: Cross multiply
    73,694.64x = 110,541.96 × 18,290.64
  4. Step 4: Simplify right side
    73,694.64x = 2,021,883,195.25
  5. Step 5: Solve for x
    x = 2,021,883,195.25/73,694.64
  6. Step 6: Final answer
    x = 27,435.96

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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.