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Finding the Fourth Proportional to 263,900.64, 395,847.60 and 64,221.36

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Solution

The fourth proportional to 263,900.64, 395,847.60 and 64,221.36 is: 96,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,900.64 : 395,847.60 = 64,221.36 : x
  2. Step 2: Convert to fraction form
    263,900.64/395,847.60 = 64,221.36/x
  3. Step 3: Cross multiply
    263,900.64x = 395,847.60 × 64,221.36
  4. Step 4: Simplify right side
    263,900.64x = 25,421,871,224.74
  5. Step 5: Solve for x
    x = 25,421,871,224.74/263,900.64
  6. Step 6: Final answer
    x = 96,331.22

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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.