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Finding the Fourth Proportional to 254,203.70, 381,303.89 and 64,662.44

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Solution

The fourth proportional to 254,203.70, 381,303.89 and 64,662.44 is: 96,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,203.70 : 381,303.89 = 64,662.44 : x
  2. Step 2: Convert to fraction form
    254,203.70/381,303.89 = 64,662.44/x
  3. Step 3: Cross multiply
    254,203.70x = 381,303.89 × 64,662.44
  4. Step 4: Simplify right side
    254,203.70x = 24,656,037,921.54
  5. Step 5: Solve for x
    x = 24,656,037,921.54/254,203.70
  6. Step 6: Final answer
    x = 96,993.23

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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.