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Finding the Fourth Proportional to 164.60, 246.92 and 56.42

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Solution

The fourth proportional to 164.60, 246.92 and 56.42 is: 84.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.60 : 246.92 = 56.42 : x
  2. Step 2: Convert to fraction form
    164.60/246.92 = 56.42/x
  3. Step 3: Cross multiply
    164.60x = 246.92 × 56.42
  4. Step 4: Simplify right side
    164.60x = 13,929.71
  5. Step 5: Solve for x
    x = 13,929.71/164.60
  6. Step 6: Final answer
    x = 84.63

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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.