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Finding the Fourth Proportional to 203,822.60, 305,777.10 and 61,656.20

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Solution

The fourth proportional to 203,822.60, 305,777.10 and 61,656.20 is: 92,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,822.60 : 305,777.10 = 61,656.20 : x
  2. Step 2: Convert to fraction form
    203,822.60/305,777.10 = 61,656.20/x
  3. Step 3: Cross multiply
    203,822.60x = 305,777.10 × 61,656.20
  4. Step 4: Simplify right side
    203,822.60x = 18,853,054,033.02
  5. Step 5: Solve for x
    x = 18,853,054,033.02/203,822.60
  6. Step 6: Final answer
    x = 92,497.37

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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.