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Finding the Fourth Proportional to 70,049.28, 104,935.68 and 52,538.88

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Solution

The fourth proportional to 70,049.28, 104,935.68 and 52,538.88 is: 78,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,049.28 : 104,935.68 = 52,538.88 : x
  2. Step 2: Convert to fraction form
    70,049.28/104,935.68 = 52,538.88/x
  3. Step 3: Cross multiply
    70,049.28x = 104,935.68 × 52,538.88
  4. Step 4: Simplify right side
    70,049.28x = 5,513,203,099.24
  5. Step 5: Solve for x
    x = 5,513,203,099.24/70,049.28
  6. Step 6: Final answer
    x = 78,704.64

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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.