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Finding the Fourth Proportional to 68,993.88, 103,951.86 and 62,338.11

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Solution

The fourth proportional to 68,993.88, 103,951.86 and 62,338.11 is: 93,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,993.88 : 103,951.86 = 62,338.11 : x
  2. Step 2: Convert to fraction form
    68,993.88/103,951.86 = 62,338.11/x
  3. Step 3: Cross multiply
    68,993.88x = 103,951.86 × 62,338.11
  4. Step 4: Simplify right side
    68,993.88x = 6,480,162,483.38
  5. Step 5: Solve for x
    x = 6,480,162,483.38/68,993.88
  6. Step 6: Final answer
    x = 93,923.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.