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Finding the Fourth Proportional to 122.99, 184.59 and 62.16

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Solution

The fourth proportional to 122.99, 184.59 and 62.16 is: 93.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.99 : 184.59 = 62.16 : x
  2. Step 2: Convert to fraction form
    122.99/184.59 = 62.16/x
  3. Step 3: Cross multiply
    122.99x = 184.59 × 62.16
  4. Step 4: Simplify right side
    122.99x = 11,474.41
  5. Step 5: Solve for x
    x = 11,474.41/122.99
  6. Step 6: Final answer
    x = 93.30

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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.