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Finding the Fourth Proportional to 123, 184.58 and 62.18

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Solution

The fourth proportional to 123, 184.58 and 62.18 is: 93.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123 : 184.58 = 62.18 : x
  2. Step 2: Convert to fraction form
    123/184.58 = 62.18/x
  3. Step 3: Cross multiply
    123x = 184.58 × 62.18
  4. Step 4: Simplify right side
    123x = 11,477.18
  5. Step 5: Solve for x
    x = 11,477.18/123
  6. Step 6: Final answer
    x = 93.31

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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.