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Finding the Fourth Proportional to 119,395.65, 164,789.52 and 68,442.57

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Solution

The fourth proportional to 119,395.65, 164,789.52 and 68,442.57 is: 94,464.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,395.65 : 164,789.52 = 68,442.57 : x
  2. Step 2: Convert to fraction form
    119,395.65/164,789.52 = 68,442.57/x
  3. Step 3: Cross multiply
    119,395.65x = 164,789.52 × 68,442.57
  4. Step 4: Simplify right side
    119,395.65x = 11,278,618,257.87
  5. Step 5: Solve for x
    x = 11,278,618,257.87/119,395.65
  6. Step 6: Final answer
    x = 94,464.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.