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Finding the Fourth Proportional to 335,837.80, 503,745.90 and 111,208.60

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Solution

The fourth proportional to 335,837.80, 503,745.90 and 111,208.60 is: 166,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,837.80 : 503,745.90 = 111,208.60 : x
  2. Step 2: Convert to fraction form
    335,837.80/503,745.90 = 111,208.60/x
  3. Step 3: Cross multiply
    335,837.80x = 503,745.90 × 111,208.60
  4. Step 4: Simplify right side
    335,837.80x = 56,020,876,294.74
  5. Step 5: Solve for x
    x = 56,020,876,294.74/335,837.80
  6. Step 6: Final answer
    x = 166,809.32

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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.