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Finding the Fourth Proportional to 265.34, 397.94 and 92.01

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Solution

The fourth proportional to 265.34, 397.94 and 92.01 is: 137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.34 : 397.94 = 92.01 : x
  2. Step 2: Convert to fraction form
    265.34/397.94 = 92.01/x
  3. Step 3: Cross multiply
    265.34x = 397.94 × 92.01
  4. Step 4: Simplify right side
    265.34x = 36,612.01
  5. Step 5: Solve for x
    x = 36,612.01/265.34
  6. Step 6: Final answer
    x = 137.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.