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Finding the Fourth Proportional to 68,767.62, 103,019.67 and 46,542.66

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Solution

The fourth proportional to 68,767.62, 103,019.67 and 46,542.66 is: 69,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,767.62 : 103,019.67 = 46,542.66 : x
  2. Step 2: Convert to fraction form
    68,767.62/103,019.67 = 46,542.66/x
  3. Step 3: Cross multiply
    68,767.62x = 103,019.67 × 46,542.66
  4. Step 4: Simplify right side
    68,767.62x = 4,794,809,474.12
  5. Step 5: Solve for x
    x = 4,794,809,474.12/68,767.62
  6. Step 6: Final answer
    x = 69,724.81

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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.