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Finding the Fourth Proportional to 115,794.66, 159,745.89 and 68,026.47

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Solution

The fourth proportional to 115,794.66, 159,745.89 and 68,026.47 is: 93,846.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,794.66 : 159,745.89 = 68,026.47 : x
  2. Step 2: Convert to fraction form
    115,794.66/159,745.89 = 68,026.47/x
  3. Step 3: Cross multiply
    115,794.66x = 159,745.89 × 68,026.47
  4. Step 4: Simplify right side
    115,794.66x = 10,866,948,993.71
  5. Step 5: Solve for x
    x = 10,866,948,993.71/115,794.66
  6. Step 6: Final answer
    x = 93,846.72

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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.