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Finding the Fourth Proportional to 203,499.60, 305,244.60 and 55,755.60

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Solution

The fourth proportional to 203,499.60, 305,244.60 and 55,755.60 is: 83,632.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,499.60 : 305,244.60 = 55,755.60 : x
  2. Step 2: Convert to fraction form
    203,499.60/305,244.60 = 55,755.60/x
  3. Step 3: Cross multiply
    203,499.60x = 305,244.60 × 55,755.60
  4. Step 4: Simplify right side
    203,499.60x = 17,019,095,819.76
  5. Step 5: Solve for x
    x = 17,019,095,819.76/203,499.60
  6. Step 6: Final answer
    x = 83,632.08

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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.