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Finding the Fourth Proportional to 271,927.55, 407,854.42 and 79,796.87

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Solution

The fourth proportional to 271,927.55, 407,854.42 and 79,796.87 is: 119,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,927.55 : 407,854.42 = 79,796.87 : x
  2. Step 2: Convert to fraction form
    271,927.55/407,854.42 = 79,796.87/x
  3. Step 3: Cross multiply
    271,927.55x = 407,854.42 × 79,796.87
  4. Step 4: Simplify right side
    271,927.55x = 32,545,504,092.39
  5. Step 5: Solve for x
    x = 32,545,504,092.39/271,927.55
  6. Step 6: Final answer
    x = 119,684.47

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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.