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Finding the Fourth Proportional to 271,687.60, 407,531.40 and 94,212.55

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Solution

The fourth proportional to 271,687.60, 407,531.40 and 94,212.55 is: 141,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,687.60 : 407,531.40 = 94,212.55 : x
  2. Step 2: Convert to fraction form
    271,687.60/407,531.40 = 94,212.55/x
  3. Step 3: Cross multiply
    271,687.60x = 407,531.40 × 94,212.55
  4. Step 4: Simplify right side
    271,687.60x = 38,394,572,399.07
  5. Step 5: Solve for x
    x = 38,394,572,399.07/271,687.60
  6. Step 6: Final answer
    x = 141,318.83

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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.