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Finding the Fourth Proportional to 234,984.74, 352,361.42 and 85,202.64

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Solution

The fourth proportional to 234,984.74, 352,361.42 and 85,202.64 is: 127,762.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,984.74 : 352,361.42 = 85,202.64 : x
  2. Step 2: Convert to fraction form
    234,984.74/352,361.42 = 85,202.64/x
  3. Step 3: Cross multiply
    234,984.74x = 352,361.42 × 85,202.64
  4. Step 4: Simplify right side
    234,984.74x = 30,022,123,218.15
  5. Step 5: Solve for x
    x = 30,022,123,218.15/234,984.74
  6. Step 6: Final answer
    x = 127,762.01

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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.