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Finding the Fourth Proportional to 164.64, 246.81 and 60.48

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Solution

The fourth proportional to 164.64, 246.81 and 60.48 is: 90.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.64 : 246.81 = 60.48 : x
  2. Step 2: Convert to fraction form
    164.64/246.81 = 60.48/x
  3. Step 3: Cross multiply
    164.64x = 246.81 × 60.48
  4. Step 4: Simplify right side
    164.64x = 14,927.07
  5. Step 5: Solve for x
    x = 14,927.07/164.64
  6. Step 6: Final answer
    x = 90.66

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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.