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Finding the Fourth Proportional to 183,664.69, 275,389.97 and 71,213.54

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Solution

The fourth proportional to 183,664.69, 275,389.97 and 71,213.54 is: 106,778.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,664.69 : 275,389.97 = 71,213.54 : x
  2. Step 2: Convert to fraction form
    183,664.69/275,389.97 = 71,213.54/x
  3. Step 3: Cross multiply
    183,664.69x = 275,389.97 × 71,213.54
  4. Step 4: Simplify right side
    183,664.69x = 19,611,492,911.18
  5. Step 5: Solve for x
    x = 19,611,492,911.18/183,664.69
  6. Step 6: Final answer
    x = 106,778.79

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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.