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Finding the Fourth Proportional to 325,353.88, 448,963.84 and 198,015.40

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Solution

The fourth proportional to 325,353.88, 448,963.84 and 198,015.40 is: 273,246.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,353.88 : 448,963.84 = 198,015.40 : x
  2. Step 2: Convert to fraction form
    325,353.88/448,963.84 = 198,015.40/x
  3. Step 3: Cross multiply
    325,353.88x = 448,963.84 × 198,015.40
  4. Step 4: Simplify right side
    325,353.88x = 88,901,754,363.14
  5. Step 5: Solve for x
    x = 88,901,754,363.14/325,353.88
  6. Step 6: Final answer
    x = 273,246.33

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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.