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Finding the Fourth Proportional to 375.96, 564 and 132.48

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Solution

The fourth proportional to 375.96, 564 and 132.48 is: 198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.96 : 564 = 132.48 : x
  2. Step 2: Convert to fraction form
    375.96/564 = 132.48/x
  3. Step 3: Cross multiply
    375.96x = 564 × 132.48
  4. Step 4: Simplify right side
    375.96x = 74,718.72
  5. Step 5: Solve for x
    x = 74,718.72/375.96
  6. Step 6: Final answer
    x = 198.74

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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.