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Finding the Fourth Proportional to 175.86, 242.88 and 164.94

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Solution

The fourth proportional to 175.86, 242.88 and 164.94 is: 227.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.86 : 242.88 = 164.94 : x
  2. Step 2: Convert to fraction form
    175.86/242.88 = 164.94/x
  3. Step 3: Cross multiply
    175.86x = 242.88 × 164.94
  4. Step 4: Simplify right side
    175.86x = 40,060.63
  5. Step 5: Solve for x
    x = 40,060.63/175.86
  6. Step 6: Final answer
    x = 227.80

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Why These Related Problems?

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