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Finding the Fourth Proportional to 148.64, 222.70 and 94.36

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Solution

The fourth proportional to 148.64, 222.70 and 94.36 is: 141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148.64 : 222.70 = 94.36 : x
  2. Step 2: Convert to fraction form
    148.64/222.70 = 94.36/x
  3. Step 3: Cross multiply
    148.64x = 222.70 × 94.36
  4. Step 4: Simplify right side
    148.64x = 21,013.97
  5. Step 5: Solve for x
    x = 21,013.97/148.64
  6. Step 6: Final answer
    x = 141.37

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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.