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Finding the Fourth Proportional to 253.26, 349.58 and 160.16

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Solution

The fourth proportional to 253.26, 349.58 and 160.16 is: 221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.26 : 349.58 = 160.16 : x
  2. Step 2: Convert to fraction form
    253.26/349.58 = 160.16/x
  3. Step 3: Cross multiply
    253.26x = 349.58 × 160.16
  4. Step 4: Simplify right side
    253.26x = 55,988.73
  5. Step 5: Solve for x
    x = 55,988.73/253.26
  6. Step 6: Final answer
    x = 221.07

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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.