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Finding the Fourth Proportional to 273,983.95, 410,904.39 and 81,813.17

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Solution

The fourth proportional to 273,983.95, 410,904.39 and 81,813.17 is: 122,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,983.95 : 410,904.39 = 81,813.17 : x
  2. Step 2: Convert to fraction form
    273,983.95/410,904.39 = 81,813.17/x
  3. Step 3: Cross multiply
    273,983.95x = 410,904.39 × 81,813.17
  4. Step 4: Simplify right side
    273,983.95x = 33,617,392,046.88
  5. Step 5: Solve for x
    x = 33,617,392,046.88/273,983.95
  6. Step 6: Final answer
    x = 122,698.40

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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.