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Finding the Fourth Proportional to 173,992.23, 260,993.78 and 82,787.66

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Solution

The fourth proportional to 173,992.23, 260,993.78 and 82,787.66 is: 124,184.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,992.23 : 260,993.78 = 82,787.66 : x
  2. Step 2: Convert to fraction form
    173,992.23/260,993.78 = 82,787.66/x
  3. Step 3: Cross multiply
    173,992.23x = 260,993.78 × 82,787.66
  4. Step 4: Simplify right side
    173,992.23x = 21,607,062,601.85
  5. Step 5: Solve for x
    x = 21,607,062,601.85/173,992.23
  6. Step 6: Final answer
    x = 124,184.07

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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.