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Finding the Fourth Proportional to 271,939.70, 407,769.48 and 122,051.49

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Solution

The fourth proportional to 271,939.70, 407,769.48 and 122,051.49 is: 183,014.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,939.70 : 407,769.48 = 122,051.49 : x
  2. Step 2: Convert to fraction form
    271,939.70/407,769.48 = 122,051.49/x
  3. Step 3: Cross multiply
    271,939.70x = 407,769.48 × 122,051.49
  4. Step 4: Simplify right side
    271,939.70x = 49,768,872,610.53
  5. Step 5: Solve for x
    x = 49,768,872,610.53/271,939.70
  6. Step 6: Final answer
    x = 183,014.37

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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.