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Finding the Fourth Proportional to 123, 184.53 and 62.13

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Solution

The fourth proportional to 123, 184.53 and 62.13 is: 93.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123 : 184.53 = 62.13 : x
  2. Step 2: Convert to fraction form
    123/184.53 = 62.13/x
  3. Step 3: Cross multiply
    123x = 184.53 × 62.13
  4. Step 4: Simplify right side
    123x = 11,464.85
  5. Step 5: Solve for x
    x = 11,464.85/123
  6. Step 6: Final answer
    x = 93.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.