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Finding the Fourth Proportional to 70,797.58, 106,197.24 and 18,205.66

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Solution

The fourth proportional to 70,797.58, 106,197.24 and 18,205.66 is: 27,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,797.58 : 106,197.24 = 18,205.66 : x
  2. Step 2: Convert to fraction form
    70,797.58/106,197.24 = 18,205.66/x
  3. Step 3: Cross multiply
    70,797.58x = 106,197.24 × 18,205.66
  4. Step 4: Simplify right side
    70,797.58x = 1,933,390,844.38
  5. Step 5: Solve for x
    x = 1,933,390,844.38/70,797.58
  6. Step 6: Final answer
    x = 27,308.71

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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.