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Finding the Fourth Proportional to 68,751.74, 103,112.76 and 24,379.94

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Solution

The fourth proportional to 68,751.74, 103,112.76 and 24,379.94 is: 36,564.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,751.74 : 103,112.76 = 24,379.94 : x
  2. Step 2: Convert to fraction form
    68,751.74/103,112.76 = 24,379.94/x
  3. Step 3: Cross multiply
    68,751.74x = 103,112.76 × 24,379.94
  4. Step 4: Simplify right side
    68,751.74x = 2,513,882,902.03
  5. Step 5: Solve for x
    x = 2,513,882,902.03/68,751.74
  6. Step 6: Final answer
    x = 36,564.64

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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.