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Finding the Fourth Proportional to 107.16, 160.64 and 35.00

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Solution

The fourth proportional to 107.16, 160.64 and 35.00 is: 52.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.16 : 160.64 = 35.00 : x
  2. Step 2: Convert to fraction form
    107.16/160.64 = 35.00/x
  3. Step 3: Cross multiply
    107.16x = 160.64 × 35.00
  4. Step 4: Simplify right side
    107.16x = 5,622.76
  5. Step 5: Solve for x
    x = 5,622.76/107.16
  6. Step 6: Final answer
    x = 52.47

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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.