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Finding the Fourth Proportional to 203,327.01, 280,524.06 and 122,723.91

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Solution

The fourth proportional to 203,327.01, 280,524.06 and 122,723.91 is: 169,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,327.01 : 280,524.06 = 122,723.91 : x
  2. Step 2: Convert to fraction form
    203,327.01/280,524.06 = 122,723.91/x
  3. Step 3: Cross multiply
    203,327.01x = 280,524.06 × 122,723.91
  4. Step 4: Simplify right side
    203,327.01x = 34,427,009,492.27
  5. Step 5: Solve for x
    x = 34,427,009,492.27/203,327.01
  6. Step 6: Final answer
    x = 169,318.43

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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.