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Finding the Fourth Proportional to 70,244.44, 105,366.76 and 28,691.44

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Solution

The fourth proportional to 70,244.44, 105,366.76 and 28,691.44 is: 43,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,244.44 : 105,366.76 = 28,691.44 : x
  2. Step 2: Convert to fraction form
    70,244.44/105,366.76 = 28,691.44/x
  3. Step 3: Cross multiply
    70,244.44x = 105,366.76 × 28,691.44
  4. Step 4: Simplify right side
    70,244.44x = 3,023,123,737.39
  5. Step 5: Solve for x
    x = 3,023,123,737.39/70,244.44
  6. Step 6: Final answer
    x = 43,037.20

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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.