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Finding the Fourth Proportional to 203.99, 305.74 and 88.53

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Solution

The fourth proportional to 203.99, 305.74 and 88.53 is: 132.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.99 : 305.74 = 88.53 : x
  2. Step 2: Convert to fraction form
    203.99/305.74 = 88.53/x
  3. Step 3: Cross multiply
    203.99x = 305.74 × 88.53
  4. Step 4: Simplify right side
    203.99x = 27,066.13
  5. Step 5: Solve for x
    x = 27,066.13/203.99
  6. Step 6: Final answer
    x = 132.69

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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.