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Finding the Fourth Proportional to 173,355.72, 259,589.61 and 119,973.78

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Solution

The fourth proportional to 173,355.72, 259,589.61 and 119,973.78 is: 179,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,355.72 : 259,589.61 = 119,973.78 : x
  2. Step 2: Convert to fraction form
    173,355.72/259,589.61 = 119,973.78/x
  3. Step 3: Cross multiply
    173,355.72x = 259,589.61 × 119,973.78
  4. Step 4: Simplify right side
    173,355.72x = 31,143,946,760.43
  5. Step 5: Solve for x
    x = 31,143,946,760.43/173,355.72
  6. Step 6: Final answer
    x = 179,653.41

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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.