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Finding the Fourth Proportional to 203,985.65, 305,906.08 and 59,851.24

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Solution

The fourth proportional to 203,985.65, 305,906.08 and 59,851.24 is: 89,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,985.65 : 305,906.08 = 59,851.24 : x
  2. Step 2: Convert to fraction form
    203,985.65/305,906.08 = 59,851.24/x
  3. Step 3: Cross multiply
    203,985.65x = 305,906.08 × 59,851.24
  4. Step 4: Simplify right side
    203,985.65x = 18,308,858,211.54
  5. Step 5: Solve for x
    x = 18,308,858,211.54/203,985.65
  6. Step 6: Final answer
    x = 89,755.62

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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.