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Finding the Fourth Proportional to 299,668.36, 449,500.92 and 122,174.68

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Solution

The fourth proportional to 299,668.36, 449,500.92 and 122,174.68 is: 183,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,668.36 : 449,500.92 = 122,174.68 : x
  2. Step 2: Convert to fraction form
    299,668.36/449,500.92 = 122,174.68/x
  3. Step 3: Cross multiply
    299,668.36x = 449,500.92 × 122,174.68
  4. Step 4: Simplify right side
    299,668.36x = 54,917,631,060.71
  5. Step 5: Solve for x
    x = 54,917,631,060.71/299,668.36
  6. Step 6: Final answer
    x = 183,261.36

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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.