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Finding the Fourth Proportional to 73,753.43, 110,630.75 and 21,164.58

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Solution

The fourth proportional to 73,753.43, 110,630.75 and 21,164.58 is: 31,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,753.43 : 110,630.75 = 21,164.58 : x
  2. Step 2: Convert to fraction form
    73,753.43/110,630.75 = 21,164.58/x
  3. Step 3: Cross multiply
    73,753.43x = 110,630.75 × 21,164.58
  4. Step 4: Simplify right side
    73,753.43x = 2,341,453,253.01
  5. Step 5: Solve for x
    x = 2,341,453,253.01/73,753.43
  6. Step 6: Final answer
    x = 31,747.04

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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.