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Finding the Fourth Proportional to 273,863.28, 377,917.86 and 152,980.56

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Solution

The fourth proportional to 273,863.28, 377,917.86 and 152,980.56 is: 211,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,863.28 : 377,917.86 = 152,980.56 : x
  2. Step 2: Convert to fraction form
    273,863.28/377,917.86 = 152,980.56/x
  3. Step 3: Cross multiply
    273,863.28x = 377,917.86 × 152,980.56
  4. Step 4: Simplify right side
    273,863.28x = 57,814,085,856.80
  5. Step 5: Solve for x
    x = 57,814,085,856.80/273,863.28
  6. Step 6: Final answer
    x = 211,105.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.