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Finding the Fourth Proportional to 203,856.60, 305,784.90 and 54,096.60

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Solution

The fourth proportional to 203,856.60, 305,784.90 and 54,096.60 is: 81,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,856.60 : 305,784.90 = 54,096.60 : x
  2. Step 2: Convert to fraction form
    203,856.60/305,784.90 = 54,096.60/x
  3. Step 3: Cross multiply
    203,856.60x = 305,784.90 × 54,096.60
  4. Step 4: Simplify right side
    203,856.60x = 16,541,923,421.34
  5. Step 5: Solve for x
    x = 16,541,923,421.34/203,856.60
  6. Step 6: Final answer
    x = 81,144.90

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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.