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Finding the Fourth Proportional to 322.43, 483.45 and 116.88

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Solution

The fourth proportional to 322.43, 483.45 and 116.88 is: 175.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.43 : 483.45 = 116.88 : x
  2. Step 2: Convert to fraction form
    322.43/483.45 = 116.88/x
  3. Step 3: Cross multiply
    322.43x = 483.45 × 116.88
  4. Step 4: Simplify right side
    322.43x = 56,505.64
  5. Step 5: Solve for x
    x = 56,505.64/322.43
  6. Step 6: Final answer
    x = 175.25

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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.