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Finding the Fourth Proportional to 68,794.83, 103,046.45 and 51,969.51

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Solution

The fourth proportional to 68,794.83, 103,046.45 and 51,969.51 is: 77,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,794.83 : 103,046.45 = 51,969.51 : x
  2. Step 2: Convert to fraction form
    68,794.83/103,046.45 = 51,969.51/x
  3. Step 3: Cross multiply
    68,794.83x = 103,046.45 × 51,969.51
  4. Step 4: Simplify right side
    68,794.83x = 5,355,273,253.89
  5. Step 5: Solve for x
    x = 5,355,273,253.89/68,794.83
  6. Step 6: Final answer
    x = 77,844.12

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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.