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Finding the Fourth Proportional to 361,394.57, 542,093.07 and 91,522.56

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Solution

The fourth proportional to 361,394.57, 542,093.07 and 91,522.56 is: 137,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,394.57 : 542,093.07 = 91,522.56 : x
  2. Step 2: Convert to fraction form
    361,394.57/542,093.07 = 91,522.56/x
  3. Step 3: Cross multiply
    361,394.57x = 542,093.07 × 91,522.56
  4. Step 4: Simplify right side
    361,394.57x = 49,613,745,524.66
  5. Step 5: Solve for x
    x = 49,613,745,524.66/361,394.57
  6. Step 6: Final answer
    x = 137,284.15

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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.