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Finding the Fourth Proportional to 68,299.95, 102,479.37 and 36,673.05

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Solution

The fourth proportional to 68,299.95, 102,479.37 and 36,673.05 is: 55,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,299.95 : 102,479.37 = 36,673.05 : x
  2. Step 2: Convert to fraction form
    68,299.95/102,479.37 = 36,673.05/x
  3. Step 3: Cross multiply
    68,299.95x = 102,479.37 × 36,673.05
  4. Step 4: Simplify right side
    68,299.95x = 3,758,231,059.98
  5. Step 5: Solve for x
    x = 3,758,231,059.98/68,299.95
  6. Step 6: Final answer
    x = 55,025.39

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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.