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Finding the Fourth Proportional to 68,399.81, 102,635.83 and 48,537.65

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Solution

The fourth proportional to 68,399.81, 102,635.83 and 48,537.65 is: 72,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,399.81 : 102,635.83 = 48,537.65 : x
  2. Step 2: Convert to fraction form
    68,399.81/102,635.83 = 48,537.65/x
  3. Step 3: Cross multiply
    68,399.81x = 102,635.83 × 48,537.65
  4. Step 4: Simplify right side
    68,399.81x = 4,981,701,994.00
  5. Step 5: Solve for x
    x = 4,981,701,994.00/68,399.81
  6. Step 6: Final answer
    x = 72,832.10

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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.