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Finding the Fourth Proportional to 73,635.16, 110,456.46 and 21,052.48

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Solution

The fourth proportional to 73,635.16, 110,456.46 and 21,052.48 is: 31,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,635.16 : 110,456.46 = 21,052.48 : x
  2. Step 2: Convert to fraction form
    73,635.16/110,456.46 = 21,052.48/x
  3. Step 3: Cross multiply
    73,635.16x = 110,456.46 × 21,052.48
  4. Step 4: Simplify right side
    73,635.16x = 2,325,382,415.02
  5. Step 5: Solve for x
    x = 2,325,382,415.02/73,635.16
  6. Step 6: Final answer
    x = 31,579.78

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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.