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Finding the Fourth Proportional to 299,668.39, 449,568.24 and 112,679.89

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Solution

The fourth proportional to 299,668.39, 449,568.24 and 112,679.89 is: 169,044.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,668.39 : 449,568.24 = 112,679.89 : x
  2. Step 2: Convert to fraction form
    299,668.39/449,568.24 = 112,679.89/x
  3. Step 3: Cross multiply
    299,668.39x = 449,568.24 × 112,679.89
  4. Step 4: Simplify right side
    299,668.39x = 50,657,299,830.69
  5. Step 5: Solve for x
    x = 50,657,299,830.69/299,668.39
  6. Step 6: Final answer
    x = 169,044.52

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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.