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Finding the Fourth Proportional to 164.36, 246.56 and 56.13

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Solution

The fourth proportional to 164.36, 246.56 and 56.13 is: 84.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.36 : 246.56 = 56.13 : x
  2. Step 2: Convert to fraction form
    164.36/246.56 = 56.13/x
  3. Step 3: Cross multiply
    164.36x = 246.56 × 56.13
  4. Step 4: Simplify right side
    164.36x = 13,839.13
  5. Step 5: Solve for x
    x = 13,839.13/164.36
  6. Step 6: Final answer
    x = 84.20

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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.