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Finding the Fourth Proportional to 94,691.88, 142,037.82 and 79,217.64

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Solution

The fourth proportional to 94,691.88, 142,037.82 and 79,217.64 is: 118,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,691.88 : 142,037.82 = 79,217.64 : x
  2. Step 2: Convert to fraction form
    94,691.88/142,037.82 = 79,217.64/x
  3. Step 3: Cross multiply
    94,691.88x = 142,037.82 × 79,217.64
  4. Step 4: Simplify right side
    94,691.88x = 11,251,900,891.14
  5. Step 5: Solve for x
    x = 11,251,900,891.14/94,691.88
  6. Step 6: Final answer
    x = 118,826.46

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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.