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Finding the Fourth Proportional to 203,873.48, 281,348.88 and 111,996.64

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Solution

The fourth proportional to 203,873.48, 281,348.88 and 111,996.64 is: 154,557.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,873.48 : 281,348.88 = 111,996.64 : x
  2. Step 2: Convert to fraction form
    203,873.48/281,348.88 = 111,996.64/x
  3. Step 3: Cross multiply
    203,873.48x = 281,348.88 × 111,996.64
  4. Step 4: Simplify right side
    203,873.48x = 31,510,129,227.76
  5. Step 5: Solve for x
    x = 31,510,129,227.76/203,873.48
  6. Step 6: Final answer
    x = 154,557.27

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1.5x scale

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.