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Finding the Fourth Proportional to 211,107.94, 316,627.89 and 92,757.22

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Solution

The fourth proportional to 211,107.94, 316,627.89 and 92,757.22 is: 139,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,107.94 : 316,627.89 = 92,757.22 : x
  2. Step 2: Convert to fraction form
    211,107.94/316,627.89 = 92,757.22/x
  3. Step 3: Cross multiply
    211,107.94x = 316,627.89 × 92,757.22
  4. Step 4: Simplify right side
    211,107.94x = 29,369,522,850.87
  5. Step 5: Solve for x
    x = 29,369,522,850.87/211,107.94
  6. Step 6: Final answer
    x = 139,120.88

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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.