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Finding the Fourth Proportional to 107.16, 160.76 and 35.07

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Solution

The fourth proportional to 107.16, 160.76 and 35.07 is: 52.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.16 : 160.76 = 35.07 : x
  2. Step 2: Convert to fraction form
    107.16/160.76 = 35.07/x
  3. Step 3: Cross multiply
    107.16x = 160.76 × 35.07
  4. Step 4: Simplify right side
    107.16x = 5,637.85
  5. Step 5: Solve for x
    x = 5,637.85/107.16
  6. Step 6: Final answer
    x = 52.61

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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.