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Finding the Fourth Proportional to 203,993.32, 305,990 and 63,753.16

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Solution

The fourth proportional to 203,993.32, 305,990 and 63,753.16 is: 95,629.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,993.32 : 305,990 = 63,753.16 : x
  2. Step 2: Convert to fraction form
    203,993.32/305,990 = 63,753.16/x
  3. Step 3: Cross multiply
    203,993.32x = 305,990 × 63,753.16
  4. Step 4: Simplify right side
    203,993.32x = 19,507,829,428.40
  5. Step 5: Solve for x
    x = 19,507,829,428.40/203,993.32
  6. Step 6: Final answer
    x = 95,629.75

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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.