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Finding the Fourth Proportional to 234,308.43, 351,390.60 and 84,529.89

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Solution

The fourth proportional to 234,308.43, 351,390.60 and 84,529.89 is: 126,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,308.43 : 351,390.60 = 84,529.89 : x
  2. Step 2: Convert to fraction form
    234,308.43/351,390.60 = 84,529.89/x
  3. Step 3: Cross multiply
    234,308.43x = 351,390.60 × 84,529.89
  4. Step 4: Simplify right side
    234,308.43x = 29,703,008,765.03
  5. Step 5: Solve for x
    x = 29,703,008,765.03/234,308.43
  6. Step 6: Final answer
    x = 126,768.84

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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.