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Finding the Fourth Proportional to 264.16, 364.70 and 190.40

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Solution

The fourth proportional to 264.16, 364.70 and 190.40 is: 262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.16 : 364.70 = 190.40 : x
  2. Step 2: Convert to fraction form
    264.16/364.70 = 190.40/x
  3. Step 3: Cross multiply
    264.16x = 364.70 × 190.40
  4. Step 4: Simplify right side
    264.16x = 69,438.88
  5. Step 5: Solve for x
    x = 69,438.88/264.16
  6. Step 6: Final answer
    x = 262.87

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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.