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Finding the Fourth Proportional to 314.67, 472.11 and 132.02

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Solution

The fourth proportional to 314.67, 472.11 and 132.02 is: 198.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.67 : 472.11 = 132.02 : x
  2. Step 2: Convert to fraction form
    314.67/472.11 = 132.02/x
  3. Step 3: Cross multiply
    314.67x = 472.11 × 132.02
  4. Step 4: Simplify right side
    314.67x = 62,326.24
  5. Step 5: Solve for x
    x = 62,326.24/314.67
  6. Step 6: Final answer
    x = 198.07

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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.