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Finding the Fourth Proportional to 164.64, 246.98 and 61.93

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Solution

The fourth proportional to 164.64, 246.98 and 61.93 is: 92.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.64 : 246.98 = 61.93 : x
  2. Step 2: Convert to fraction form
    164.64/246.98 = 61.93/x
  3. Step 3: Cross multiply
    164.64x = 246.98 × 61.93
  4. Step 4: Simplify right side
    164.64x = 15,295.01
  5. Step 5: Solve for x
    x = 15,295.01/164.64
  6. Step 6: Final answer
    x = 92.90

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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.