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Finding the Fourth Proportional to 259.26, 357.78 and 152.94

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Solution

The fourth proportional to 259.26, 357.78 and 152.94 is: 211.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.26 : 357.78 = 152.94 : x
  2. Step 2: Convert to fraction form
    259.26/357.78 = 152.94/x
  3. Step 3: Cross multiply
    259.26x = 357.78 × 152.94
  4. Step 4: Simplify right side
    259.26x = 54,718.87
  5. Step 5: Solve for x
    x = 54,718.87/259.26
  6. Step 6: Final answer
    x = 211.06

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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.