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Finding the Fourth Proportional to 203,648.67, 305,696.48 and 161,797.77

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Solution

The fourth proportional to 203,648.67, 305,696.48 and 161,797.77 is: 242,874.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,648.67 : 305,696.48 = 161,797.77 : x
  2. Step 2: Convert to fraction form
    203,648.67/305,696.48 = 161,797.77/x
  3. Step 3: Cross multiply
    203,648.67x = 305,696.48 × 161,797.77
  4. Step 4: Simplify right side
    203,648.67x = 49,461,007,951.86
  5. Step 5: Solve for x
    x = 49,461,007,951.86/203,648.67
  6. Step 6: Final answer
    x = 242,874.20

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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.