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Finding the Fourth Proportional to 68,348.40, 102,473.39 and 41,998.70

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Solution

The fourth proportional to 68,348.40, 102,473.39 and 41,998.70 is: 62,967.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,348.40 : 102,473.39 = 41,998.70 : x
  2. Step 2: Convert to fraction form
    68,348.40/102,473.39 = 41,998.70/x
  3. Step 3: Cross multiply
    68,348.40x = 102,473.39 × 41,998.70
  4. Step 4: Simplify right side
    68,348.40x = 4,303,749,164.59
  5. Step 5: Solve for x
    x = 4,303,749,164.59/68,348.40
  6. Step 6: Final answer
    x = 62,967.81

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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.