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Finding the Fourth Proportional to 203,668.92, 281,050.41 and 123,048.81

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Solution

The fourth proportional to 203,668.92, 281,050.41 and 123,048.81 is: 169,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,668.92 : 281,050.41 = 123,048.81 : x
  2. Step 2: Convert to fraction form
    203,668.92/281,050.41 = 123,048.81/x
  3. Step 3: Cross multiply
    203,668.92x = 281,050.41 × 123,048.81
  4. Step 4: Simplify right side
    203,668.92x = 34,582,918,500.51
  5. Step 5: Solve for x
    x = 34,582,918,500.51/203,668.92
  6. Step 6: Final answer
    x = 169,799.69

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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.