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Finding the Fourth Proportional to 271,796.04, 407,654.46 and 72,128.52

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Solution

The fourth proportional to 271,796.04, 407,654.46 and 72,128.52 is: 108,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,796.04 : 407,654.46 = 72,128.52 : x
  2. Step 2: Convert to fraction form
    271,796.04/407,654.46 = 72,128.52/x
  3. Step 3: Cross multiply
    271,796.04x = 407,654.46 × 72,128.52
  4. Step 4: Simplify right side
    271,796.04x = 29,403,512,871.20
  5. Step 5: Solve for x
    x = 29,403,512,871.20/271,796.04
  6. Step 6: Final answer
    x = 108,182.27

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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.