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Finding the Fourth Proportional to 335,403.69, 503,155.40 and 110,787.85

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Solution

The fourth proportional to 335,403.69, 503,155.40 and 110,787.85 is: 166,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,403.69 : 503,155.40 = 110,787.85 : x
  2. Step 2: Convert to fraction form
    335,403.69/503,155.40 = 110,787.85/x
  3. Step 3: Cross multiply
    335,403.69x = 503,155.40 × 110,787.85
  4. Step 4: Simplify right side
    335,403.69x = 55,743,505,056.90
  5. Step 5: Solve for x
    x = 55,743,505,056.90/335,403.69
  6. Step 6: Final answer
    x = 166,198.25

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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.