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Finding the Fourth Proportional to 68,272.92, 102,472.74 and 35,017.56

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Solution

The fourth proportional to 68,272.92, 102,472.74 and 35,017.56 is: 52,558.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,272.92 : 102,472.74 = 35,017.56 : x
  2. Step 2: Convert to fraction form
    68,272.92/102,472.74 = 35,017.56/x
  3. Step 3: Cross multiply
    68,272.92x = 102,472.74 × 35,017.56
  4. Step 4: Simplify right side
    68,272.92x = 3,588,345,321.31
  5. Step 5: Solve for x
    x = 3,588,345,321.31/68,272.92
  6. Step 6: Final answer
    x = 52,558.84

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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.