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Finding the Fourth Proportional to 140,188, 193,477.26 and 92,540.56

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Solution

The fourth proportional to 140,188, 193,477.26 and 92,540.56 is: 127,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,188 : 193,477.26 = 92,540.56 : x
  2. Step 2: Convert to fraction form
    140,188/193,477.26 = 92,540.56/x
  3. Step 3: Cross multiply
    140,188x = 193,477.26 × 92,540.56
  4. Step 4: Simplify right side
    140,188x = 17,904,493,987.67
  5. Step 5: Solve for x
    x = 17,904,493,987.67/140,188
  6. Step 6: Final answer
    x = 127,717.74

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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.