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Finding the Fourth Proportional to 168,023.61, 231,872.46 and 92,572.11

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Solution

The fourth proportional to 168,023.61, 231,872.46 and 92,572.11 is: 127,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,023.61 : 231,872.46 = 92,572.11 : x
  2. Step 2: Convert to fraction form
    168,023.61/231,872.46 = 92,572.11/x
  3. Step 3: Cross multiply
    168,023.61x = 231,872.46 × 92,572.11
  4. Step 4: Simplify right side
    168,023.61x = 21,464,922,525.95
  5. Step 5: Solve for x
    x = 21,464,922,525.95/168,023.61
  6. Step 6: Final answer
    x = 127,749.44

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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.