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Finding the Fourth Proportional to 106.16, 146.50 and 62.48

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Solution

The fourth proportional to 106.16, 146.50 and 62.48 is: 86.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106.16 : 146.50 = 62.48 : x
  2. Step 2: Convert to fraction form
    106.16/146.50 = 62.48/x
  3. Step 3: Cross multiply
    106.16x = 146.50 × 62.48
  4. Step 4: Simplify right side
    106.16x = 9,153.53
  5. Step 5: Solve for x
    x = 9,153.53/106.16
  6. Step 6: Final answer
    x = 86.23

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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.