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Finding the Fourth Proportional to 173,163.70, 259,779.03 and 66,539.62

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Solution

The fourth proportional to 173,163.70, 259,779.03 and 66,539.62 is: 99,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,163.70 : 259,779.03 = 66,539.62 : x
  2. Step 2: Convert to fraction form
    173,163.70/259,779.03 = 66,539.62/x
  3. Step 3: Cross multiply
    173,163.70x = 259,779.03 × 66,539.62
  4. Step 4: Simplify right side
    173,163.70x = 17,285,597,940.17
  5. Step 5: Solve for x
    x = 17,285,597,940.17/173,163.70
  6. Step 6: Final answer
    x = 99,822.29

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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.