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Finding the Fourth Proportional to 68,785.62, 103,040.19 and 35,884.50

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Solution

The fourth proportional to 68,785.62, 103,040.19 and 35,884.50 is: 53,754.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,785.62 : 103,040.19 = 35,884.50 : x
  2. Step 2: Convert to fraction form
    68,785.62/103,040.19 = 35,884.50/x
  3. Step 3: Cross multiply
    68,785.62x = 103,040.19 × 35,884.50
  4. Step 4: Simplify right side
    68,785.62x = 3,697,545,698.06
  5. Step 5: Solve for x
    x = 3,697,545,698.06/68,785.62
  6. Step 6: Final answer
    x = 53,754.63

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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.