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Finding the Fourth Proportional to 202,540.06, 303,622.27 and 69,388.68

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Solution

The fourth proportional to 202,540.06, 303,622.27 and 69,388.68 is: 104,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,540.06 : 303,622.27 = 69,388.68 : x
  2. Step 2: Convert to fraction form
    202,540.06/303,622.27 = 69,388.68/x
  3. Step 3: Cross multiply
    202,540.06x = 303,622.27 × 69,388.68
  4. Step 4: Simplify right side
    202,540.06x = 21,067,948,533.90
  5. Step 5: Solve for x
    x = 21,067,948,533.90/202,540.06
  6. Step 6: Final answer
    x = 104,018.67

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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.