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Finding the Fourth Proportional to 195, 292.44 and 146.16

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Solution

The fourth proportional to 195, 292.44 and 146.16 is: 219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195 : 292.44 = 146.16 : x
  2. Step 2: Convert to fraction form
    195/292.44 = 146.16/x
  3. Step 3: Cross multiply
    195x = 292.44 × 146.16
  4. Step 4: Simplify right side
    195x = 42,743.03
  5. Step 5: Solve for x
    x = 42,743.03/195
  6. Step 6: Final answer
    x = 219.20

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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.