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Finding the Fourth Proportional to 173,103.36, 259,735.41 and 66,451.83

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Solution

The fourth proportional to 173,103.36, 259,735.41 and 66,451.83 is: 99,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,103.36 : 259,735.41 = 66,451.83 : x
  2. Step 2: Convert to fraction form
    173,103.36/259,735.41 = 66,451.83/x
  3. Step 3: Cross multiply
    173,103.36x = 259,735.41 × 66,451.83
  4. Step 4: Simplify right side
    173,103.36x = 17,259,893,310.30
  5. Step 5: Solve for x
    x = 17,259,893,310.30/173,103.36
  6. Step 6: Final answer
    x = 99,708.60

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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.