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Finding the Fourth Proportional to 68,717.93, 103,012.23 and 37,080.57

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Solution

The fourth proportional to 68,717.93, 103,012.23 and 37,080.57 is: 55,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,717.93 : 103,012.23 = 37,080.57 : x
  2. Step 2: Convert to fraction form
    68,717.93/103,012.23 = 37,080.57/x
  3. Step 3: Cross multiply
    68,717.93x = 103,012.23 × 37,080.57
  4. Step 4: Simplify right side
    68,717.93x = 3,819,752,205.37
  5. Step 5: Solve for x
    x = 3,819,752,205.37/68,717.93
  6. Step 6: Final answer
    x = 55,585.97

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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.