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Finding the Fourth Proportional to 212.76, 293.40 and 169.02

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Solution

The fourth proportional to 212.76, 293.40 and 169.02 is: 233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.76 : 293.40 = 169.02 : x
  2. Step 2: Convert to fraction form
    212.76/293.40 = 169.02/x
  3. Step 3: Cross multiply
    212.76x = 293.40 × 169.02
  4. Step 4: Simplify right side
    212.76x = 49,590.47
  5. Step 5: Solve for x
    x = 49,590.47/212.76
  6. Step 6: Final answer
    x = 233.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.