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Finding the Fourth Proportional to 483.22, 724.82 and 118.01

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Solution

The fourth proportional to 483.22, 724.82 and 118.01 is: 177.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.22 : 724.82 = 118.01 : x
  2. Step 2: Convert to fraction form
    483.22/724.82 = 118.01/x
  3. Step 3: Cross multiply
    483.22x = 724.82 × 118.01
  4. Step 4: Simplify right side
    483.22x = 85,532.38
  5. Step 5: Solve for x
    x = 85,532.38/483.22
  6. Step 6: Final answer
    x = 177.01

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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.