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Finding the Fourth Proportional to 126,082.52, 189,197.48 and 69,969.76

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Solution

The fourth proportional to 126,082.52, 189,197.48 and 69,969.76 is: 104,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,082.52 : 189,197.48 = 69,969.76 : x
  2. Step 2: Convert to fraction form
    126,082.52/189,197.48 = 69,969.76/x
  3. Step 3: Cross multiply
    126,082.52x = 189,197.48 × 69,969.76
  4. Step 4: Simplify right side
    126,082.52x = 13,238,102,268.20
  5. Step 5: Solve for x
    x = 13,238,102,268.20/126,082.52
  6. Step 6: Final answer
    x = 104,995.54

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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.