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Finding the Fourth Proportional to 128,267.68, 192,404.49 and 44,027.14

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Solution

The fourth proportional to 128,267.68, 192,404.49 and 44,027.14 is: 66,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,267.68 : 192,404.49 = 44,027.14 : x
  2. Step 2: Convert to fraction form
    128,267.68/192,404.49 = 44,027.14/x
  3. Step 3: Cross multiply
    128,267.68x = 192,404.49 × 44,027.14
  4. Step 4: Simplify right side
    128,267.68x = 8,471,019,417.86
  5. Step 5: Solve for x
    x = 8,471,019,417.86/128,267.68
  6. Step 6: Final answer
    x = 66,041.73

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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.