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Finding the Fourth Proportional to 348,765.54, 522,709.56 and 188,835.12

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Solution

The fourth proportional to 348,765.54, 522,709.56 and 188,835.12 is: 283,015.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,765.54 : 522,709.56 = 188,835.12 : x
  2. Step 2: Convert to fraction form
    348,765.54/522,709.56 = 188,835.12/x
  3. Step 3: Cross multiply
    348,765.54x = 522,709.56 × 188,835.12
  4. Step 4: Simplify right side
    348,765.54x = 98,705,922,487.75
  5. Step 5: Solve for x
    x = 98,705,922,487.75/348,765.54
  6. Step 6: Final answer
    x = 283,015.12

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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.