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Finding the Fourth Proportional to 203,728.36, 305,591.74 and 114,941.48

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Solution

The fourth proportional to 203,728.36, 305,591.74 and 114,941.48 is: 172,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,728.36 : 305,591.74 = 114,941.48 : x
  2. Step 2: Convert to fraction form
    203,728.36/305,591.74 = 114,941.48/x
  3. Step 3: Cross multiply
    203,728.36x = 305,591.74 × 114,941.48
  4. Step 4: Simplify right side
    203,728.36x = 35,125,166,871.38
  5. Step 5: Solve for x
    x = 35,125,166,871.38/203,728.36
  6. Step 6: Final answer
    x = 172,411.77

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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.