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Finding the Fourth Proportional to 203,371.46, 280,557.69 and 127,961.54

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Solution

The fourth proportional to 203,371.46, 280,557.69 and 127,961.54 is: 176,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,371.46 : 280,557.69 = 127,961.54 : x
  2. Step 2: Convert to fraction form
    203,371.46/280,557.69 = 127,961.54/x
  3. Step 3: Cross multiply
    203,371.46x = 280,557.69 × 127,961.54
  4. Step 4: Simplify right side
    203,371.46x = 35,900,594,071.24
  5. Step 5: Solve for x
    x = 35,900,594,071.24/203,371.46
  6. Step 6: Final answer
    x = 176,527.20

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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.