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Finding the Fourth Proportional to 196.32, 294 and 114.96

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Solution

The fourth proportional to 196.32, 294 and 114.96 is: 172.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.32 : 294 = 114.96 : x
  2. Step 2: Convert to fraction form
    196.32/294 = 114.96/x
  3. Step 3: Cross multiply
    196.32x = 294 × 114.96
  4. Step 4: Simplify right side
    196.32x = 33,798.24
  5. Step 5: Solve for x
    x = 33,798.24/196.32
  6. Step 6: Final answer
    x = 172.16

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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.