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Finding the Fourth Proportional to 157.14, 216.74 and 150.24

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Solution

The fourth proportional to 157.14, 216.74 and 150.24 is: 207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.14 : 216.74 = 150.24 : x
  2. Step 2: Convert to fraction form
    157.14/216.74 = 150.24/x
  3. Step 3: Cross multiply
    157.14x = 216.74 × 150.24
  4. Step 4: Simplify right side
    157.14x = 32,563.02
  5. Step 5: Solve for x
    x = 32,563.02/157.14
  6. Step 6: Final answer
    x = 207.22

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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.