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Finding the Fourth Proportional to 173,108.43, 259,691.81 and 79,611.75

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Solution

The fourth proportional to 173,108.43, 259,691.81 and 79,611.75 is: 119,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,108.43 : 259,691.81 = 79,611.75 : x
  2. Step 2: Convert to fraction form
    173,108.43/259,691.81 = 79,611.75/x
  3. Step 3: Cross multiply
    173,108.43x = 259,691.81 × 79,611.75
  4. Step 4: Simplify right side
    173,108.43x = 20,674,519,056.71
  5. Step 5: Solve for x
    x = 20,674,519,056.71/173,108.43
  6. Step 6: Final answer
    x = 119,431.04

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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.