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Finding the Fourth Proportional to 181.32, 250.06 and 153.76

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Solution

The fourth proportional to 181.32, 250.06 and 153.76 is: 212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.32 : 250.06 = 153.76 : x
  2. Step 2: Convert to fraction form
    181.32/250.06 = 153.76/x
  3. Step 3: Cross multiply
    181.32x = 250.06 × 153.76
  4. Step 4: Simplify right side
    181.32x = 38,449.23
  5. Step 5: Solve for x
    x = 38,449.23/181.32
  6. Step 6: Final answer
    x = 212.05

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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.