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Finding the Fourth Proportional to 203,629.56, 305,371.14 and 70,473.68

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Solution

The fourth proportional to 203,629.56, 305,371.14 and 70,473.68 is: 105,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,629.56 : 305,371.14 = 70,473.68 : x
  2. Step 2: Convert to fraction form
    203,629.56/305,371.14 = 70,473.68/x
  3. Step 3: Cross multiply
    203,629.56x = 305,371.14 × 70,473.68
  4. Step 4: Simplify right side
    203,629.56x = 21,520,628,001.60
  5. Step 5: Solve for x
    x = 21,520,628,001.60/203,629.56
  6. Step 6: Final answer
    x = 105,685.19

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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.