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Finding the Fourth Proportional to 141,906.11, 212,859.17 and 36,724.78

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Solution

The fourth proportional to 141,906.11, 212,859.17 and 36,724.78 is: 55,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,906.11 : 212,859.17 = 36,724.78 : x
  2. Step 2: Convert to fraction form
    141,906.11/212,859.17 = 36,724.78/x
  3. Step 3: Cross multiply
    141,906.11x = 212,859.17 × 36,724.78
  4. Step 4: Simplify right side
    141,906.11x = 7,817,204,941.31
  5. Step 5: Solve for x
    x = 7,817,204,941.31/141,906.11
  6. Step 6: Final answer
    x = 55,087.16

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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.