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Finding the Fourth Proportional to 245,143.74, 367,736.78 and 67,650.74

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Solution

The fourth proportional to 245,143.74, 367,736.78 and 67,650.74 is: 101,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,143.74 : 367,736.78 = 67,650.74 : x
  2. Step 2: Convert to fraction form
    245,143.74/367,736.78 = 67,650.74/x
  3. Step 3: Cross multiply
    245,143.74x = 367,736.78 × 67,650.74
  4. Step 4: Simplify right side
    245,143.74x = 24,877,665,292.22
  5. Step 5: Solve for x
    x = 24,877,665,292.22/245,143.74
  6. Step 6: Final answer
    x = 101,481.95

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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.