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Finding the Fourth Proportional to 71,973.64, 107,956.57 and 22,053.88

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Solution

The fourth proportional to 71,973.64, 107,956.57 and 22,053.88 is: 33,079.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.64 : 107,956.57 = 22,053.88 : x
  2. Step 2: Convert to fraction form
    71,973.64/107,956.57 = 22,053.88/x
  3. Step 3: Cross multiply
    71,973.64x = 107,956.57 × 22,053.88
  4. Step 4: Simplify right side
    71,973.64x = 2,380,861,361.15
  5. Step 5: Solve for x
    x = 2,380,861,361.15/71,973.64
  6. Step 6: Final answer
    x = 33,079.63

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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.