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Finding the Fourth Proportional to 68,662.94, 102,814.18 and 55,264.73

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Solution

The fourth proportional to 68,662.94, 102,814.18 and 55,264.73 is: 82,752.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,662.94 : 102,814.18 = 55,264.73 : x
  2. Step 2: Convert to fraction form
    68,662.94/102,814.18 = 55,264.73/x
  3. Step 3: Cross multiply
    68,662.94x = 102,814.18 × 55,264.73
  4. Step 4: Simplify right side
    68,662.94x = 5,681,997,245.64
  5. Step 5: Solve for x
    x = 5,681,997,245.64/68,662.94
  6. Step 6: Final answer
    x = 82,752.03

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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.