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Finding the Fourth Proportional to 192,489.17, 265,509.91 and 123,469.41

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Solution

The fourth proportional to 192,489.17, 265,509.91 and 123,469.41 is: 170,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,489.17 : 265,509.91 = 123,469.41 : x
  2. Step 2: Convert to fraction form
    192,489.17/265,509.91 = 123,469.41/x
  3. Step 3: Cross multiply
    192,489.17x = 265,509.91 × 123,469.41
  4. Step 4: Simplify right side
    192,489.17x = 32,782,351,936.85
  5. Step 5: Solve for x
    x = 32,782,351,936.85/192,489.17
  6. Step 6: Final answer
    x = 170,307.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.