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Finding the Fourth Proportional to 68,299.89, 102,295.12 and 36,654.81

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Solution

The fourth proportional to 68,299.89, 102,295.12 and 36,654.81 is: 54,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,299.89 : 102,295.12 = 36,654.81 : x
  2. Step 2: Convert to fraction form
    68,299.89/102,295.12 = 36,654.81/x
  3. Step 3: Cross multiply
    68,299.89x = 102,295.12 × 36,654.81
  4. Step 4: Simplify right side
    68,299.89x = 3,749,608,187.53
  5. Step 5: Solve for x
    x = 3,749,608,187.53/68,299.89
  6. Step 6: Final answer
    x = 54,899.18

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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.