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Finding the Fourth Proportional to 171,311.30, 236,410.11 and 92,729.22

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Solution

The fourth proportional to 171,311.30, 236,410.11 and 92,729.22 is: 127,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,311.30 : 236,410.11 = 92,729.22 : x
  2. Step 2: Convert to fraction form
    171,311.30/236,410.11 = 92,729.22/x
  3. Step 3: Cross multiply
    171,311.30x = 236,410.11 × 92,729.22
  4. Step 4: Simplify right side
    171,311.30x = 21,922,124,213.88
  5. Step 5: Solve for x
    x = 21,922,124,213.88/171,311.30
  6. Step 6: Final answer
    x = 127,966.60

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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.