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Finding the Fourth Proportional to 82.33, 123.33 and 73.88

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Solution

The fourth proportional to 82.33, 123.33 and 73.88 is: 110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.33 : 123.33 = 73.88 : x
  2. Step 2: Convert to fraction form
    82.33/123.33 = 73.88/x
  3. Step 3: Cross multiply
    82.33x = 123.33 × 73.88
  4. Step 4: Simplify right side
    82.33x = 9,111.74
  5. Step 5: Solve for x
    x = 9,111.74/82.33
  6. Step 6: Final answer
    x = 110.68

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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.