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Finding the Fourth Proportional to 122.96, 184.14 and 65.08

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Solution

The fourth proportional to 122.96, 184.14 and 65.08 is: 97.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.96 : 184.14 = 65.08 : x
  2. Step 2: Convert to fraction form
    122.96/184.14 = 65.08/x
  3. Step 3: Cross multiply
    122.96x = 184.14 × 65.08
  4. Step 4: Simplify right side
    122.96x = 11,983.83
  5. Step 5: Solve for x
    x = 11,983.83/122.96
  6. Step 6: Final answer
    x = 97.46

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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.