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Finding the Fourth Proportional to 135,777.28, 203,662.48 and 64,750.12

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Solution

The fourth proportional to 135,777.28, 203,662.48 and 64,750.12 is: 97,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,777.28 : 203,662.48 = 64,750.12 : x
  2. Step 2: Convert to fraction form
    135,777.28/203,662.48 = 64,750.12/x
  3. Step 3: Cross multiply
    135,777.28x = 203,662.48 × 64,750.12
  4. Step 4: Simplify right side
    135,777.28x = 13,187,170,146.96
  5. Step 5: Solve for x
    x = 13,187,170,146.96/135,777.28
  6. Step 6: Final answer
    x = 97,123.54

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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.