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Finding the Fourth Proportional to 178.52, 246.57 and 152.26

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Solution

The fourth proportional to 178.52, 246.57 and 152.26 is: 210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.52 : 246.57 = 152.26 : x
  2. Step 2: Convert to fraction form
    178.52/246.57 = 152.26/x
  3. Step 3: Cross multiply
    178.52x = 246.57 × 152.26
  4. Step 4: Simplify right side
    178.52x = 37,542.75
  5. Step 5: Solve for x
    x = 37,542.75/178.52
  6. Step 6: Final answer
    x = 210.30

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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.