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Finding the Fourth Proportional to 203,481.60, 305,217.60 and 55,737.60

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Solution

The fourth proportional to 203,481.60, 305,217.60 and 55,737.60 is: 83,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,481.60 : 305,217.60 = 55,737.60 : x
  2. Step 2: Convert to fraction form
    203,481.60/305,217.60 = 55,737.60/x
  3. Step 3: Cross multiply
    203,481.60x = 305,217.60 × 55,737.60
  4. Step 4: Simplify right side
    203,481.60x = 17,012,096,501.76
  5. Step 5: Solve for x
    x = 17,012,096,501.76/203,481.60
  6. Step 6: Final answer
    x = 83,605.09

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1.5x scale

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.