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Finding the Fourth Proportional to 289, 433.24 and 106.27

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Solution

The fourth proportional to 289, 433.24 and 106.27 is: 159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289 : 433.24 = 106.27 : x
  2. Step 2: Convert to fraction form
    289/433.24 = 106.27/x
  3. Step 3: Cross multiply
    289x = 433.24 × 106.27
  4. Step 4: Simplify right side
    289x = 46,038.25
  5. Step 5: Solve for x
    x = 46,038.25/289
  6. Step 6: Final answer
    x = 159.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.