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Finding the Fourth Proportional to 262,121.16, 361,716.48 and 147,396.54

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Solution

The fourth proportional to 262,121.16, 361,716.48 and 147,396.54 is: 203,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,121.16 : 361,716.48 = 147,396.54 : x
  2. Step 2: Convert to fraction form
    262,121.16/361,716.48 = 147,396.54/x
  3. Step 3: Cross multiply
    262,121.16x = 361,716.48 × 147,396.54
  4. Step 4: Simplify right side
    262,121.16x = 53,315,757,612.98
  5. Step 5: Solve for x
    x = 53,315,757,612.98/262,121.16
  6. Step 6: Final answer
    x = 203,401.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.