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Finding the Fourth Proportional to 125,372.81, 188,108.44 and 55,202.92

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Solution

The fourth proportional to 125,372.81, 188,108.44 and 55,202.92 is: 82,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,372.81 : 188,108.44 = 55,202.92 : x
  2. Step 2: Convert to fraction form
    125,372.81/188,108.44 = 55,202.92/x
  3. Step 3: Cross multiply
    125,372.81x = 188,108.44 × 55,202.92
  4. Step 4: Simplify right side
    125,372.81x = 10,384,134,556.37
  5. Step 5: Solve for x
    x = 10,384,134,556.37/125,372.81
  6. Step 6: Final answer
    x = 82,826.05

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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.