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Finding the Fourth Proportional to 125,790.78, 173,594.43 and 68,433.33

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Solution

The fourth proportional to 125,790.78, 173,594.43 and 68,433.33 is: 94,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,790.78 : 173,594.43 = 68,433.33 : x
  2. Step 2: Convert to fraction form
    125,790.78/173,594.43 = 68,433.33/x
  3. Step 3: Cross multiply
    125,790.78x = 173,594.43 × 68,433.33
  4. Step 4: Simplify right side
    125,790.78x = 11,879,644,914.35
  5. Step 5: Solve for x
    x = 11,879,644,914.35/125,790.78
  6. Step 6: Final answer
    x = 94,439.71

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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.