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Finding the Fourth Proportional to 222.36, 333 and 130.98

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Solution

The fourth proportional to 222.36, 333 and 130.98 is: 196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.36 : 333 = 130.98 : x
  2. Step 2: Convert to fraction form
    222.36/333 = 130.98/x
  3. Step 3: Cross multiply
    222.36x = 333 × 130.98
  4. Step 4: Simplify right side
    222.36x = 43,616.34
  5. Step 5: Solve for x
    x = 43,616.34/222.36
  6. Step 6: Final answer
    x = 196.15

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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.