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Finding the Fourth Proportional to 73,754.43, 110,632.25 and 21,165.58

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Solution

The fourth proportional to 73,754.43, 110,632.25 and 21,165.58 is: 31,748.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,754.43 : 110,632.25 = 21,165.58 : x
  2. Step 2: Convert to fraction form
    73,754.43/110,632.25 = 21,165.58/x
  3. Step 3: Cross multiply
    73,754.43x = 110,632.25 × 21,165.58
  4. Step 4: Simplify right side
    73,754.43x = 2,341,595,737.96
  5. Step 5: Solve for x
    x = 2,341,595,737.96/73,754.43
  6. Step 6: Final answer
    x = 31,748.54

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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.