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Finding the Fourth Proportional to 135,851.63, 203,711.89 and 56,944.67

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Solution

The fourth proportional to 135,851.63, 203,711.89 and 56,944.67 is: 85,389.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,851.63 : 203,711.89 = 56,944.67 : x
  2. Step 2: Convert to fraction form
    135,851.63/203,711.89 = 56,944.67/x
  3. Step 3: Cross multiply
    135,851.63x = 203,711.89 × 56,944.67
  4. Step 4: Simplify right side
    135,851.63x = 11,600,305,047.84
  5. Step 5: Solve for x
    x = 11,600,305,047.84/135,851.63
  6. Step 6: Final answer
    x = 85,389.52

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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.