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Finding the Fourth Proportional to 106.95, 160.46 and 52.83

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Solution

The fourth proportional to 106.95, 160.46 and 52.83 is: 79.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.95 : 160.46 = 52.83 : x
  2. Step 2: Convert to fraction form
    106.95/160.46 = 52.83/x
  3. Step 3: Cross multiply
    106.95x = 160.46 × 52.83
  4. Step 4: Simplify right side
    106.95x = 8,476.84
  5. Step 5: Solve for x
    x = 8,476.84/106.95
  6. Step 6: Final answer
    x = 79.26

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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.