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Finding the Fourth Proportional to 68,528.78, 102,832.05 and 27,004.94

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Solution

The fourth proportional to 68,528.78, 102,832.05 and 27,004.94 is: 40,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528.78 : 102,832.05 = 27,004.94 : x
  2. Step 2: Convert to fraction form
    68,528.78/102,832.05 = 27,004.94/x
  3. Step 3: Cross multiply
    68,528.78x = 102,832.05 × 27,004.94
  4. Step 4: Simplify right side
    68,528.78x = 2,776,973,340.33
  5. Step 5: Solve for x
    x = 2,776,973,340.33/68,528.78
  6. Step 6: Final answer
    x = 40,522.73

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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.