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Finding the Fourth Proportional to 259.11, 357.71 and 160.95

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Solution

The fourth proportional to 259.11, 357.71 and 160.95 is: 222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.11 : 357.71 = 160.95 : x
  2. Step 2: Convert to fraction form
    259.11/357.71 = 160.95/x
  3. Step 3: Cross multiply
    259.11x = 357.71 × 160.95
  4. Step 4: Simplify right side
    259.11x = 57,573.42
  5. Step 5: Solve for x
    x = 57,573.42/259.11
  6. Step 6: Final answer
    x = 222.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.