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Finding the Fourth Proportional to 322, 482.88 and 116.49

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Solution

The fourth proportional to 322, 482.88 and 116.49 is: 174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    322 : 482.88 = 116.49 : x
  2. Step 2: Convert to fraction form
    322/482.88 = 116.49/x
  3. Step 3: Cross multiply
    322x = 482.88 × 116.49
  4. Step 4: Simplify right side
    322x = 56,250.69
  5. Step 5: Solve for x
    x = 56,250.69/322
  6. Step 6: Final answer
    x = 174.69

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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.