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Finding the Fourth Proportional to 171,591.62, 236,716.34 and 107,964.50

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Solution

The fourth proportional to 171,591.62, 236,716.34 and 107,964.50 is: 148,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,591.62 : 236,716.34 = 107,964.50 : x
  2. Step 2: Convert to fraction form
    171,591.62/236,716.34 = 107,964.50/x
  3. Step 3: Cross multiply
    171,591.62x = 236,716.34 × 107,964.50
  4. Step 4: Simplify right side
    171,591.62x = 25,556,962,151.63
  5. Step 5: Solve for x
    x = 25,556,962,151.63/171,591.62
  6. Step 6: Final answer
    x = 148,940.62

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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.