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Finding the Fourth Proportional to 188.16, 282.40 and 116

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Solution

The fourth proportional to 188.16, 282.40 and 116 is: 174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.16 : 282.40 = 116 : x
  2. Step 2: Convert to fraction form
    188.16/282.40 = 116/x
  3. Step 3: Cross multiply
    188.16x = 282.40 × 116
  4. Step 4: Simplify right side
    188.16x = 32,758.40
  5. Step 5: Solve for x
    x = 32,758.40/188.16
  6. Step 6: Final answer
    x = 174.10

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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.