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Finding the Fourth Proportional to 134.13, 201.24 and 53

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Solution

The fourth proportional to 134.13, 201.24 and 53 is: 79.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.13 : 201.24 = 53 : x
  2. Step 2: Convert to fraction form
    134.13/201.24 = 53/x
  3. Step 3: Cross multiply
    134.13x = 201.24 × 53
  4. Step 4: Simplify right side
    134.13x = 10,665.72
  5. Step 5: Solve for x
    x = 10,665.72/134.13
  6. Step 6: Final answer
    x = 79.52

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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.