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Finding the Fourth Proportional to 135,803.01, 187,442.60 and 92,799.90

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Solution

The fourth proportional to 135,803.01, 187,442.60 and 92,799.90 is: 128,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,803.01 : 187,442.60 = 92,799.90 : x
  2. Step 2: Convert to fraction form
    135,803.01/187,442.60 = 92,799.90/x
  3. Step 3: Cross multiply
    135,803.01x = 187,442.60 × 92,799.90
  4. Step 4: Simplify right side
    135,803.01x = 17,394,654,540.35
  5. Step 5: Solve for x
    x = 17,394,654,540.35/135,803.01
  6. Step 6: Final answer
    x = 128,087.41

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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.