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Finding the Fourth Proportional to 325,806.50, 449,612.98 and 198,482.00

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Solution

The fourth proportional to 325,806.50, 449,612.98 and 198,482.00 is: 273,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,806.50 : 449,612.98 = 198,482.00 : x
  2. Step 2: Convert to fraction form
    325,806.50/449,612.98 = 198,482.00/x
  3. Step 3: Cross multiply
    325,806.50x = 449,612.98 × 198,482.00
  4. Step 4: Simplify right side
    325,806.50x = 89,240,080,752.09
  5. Step 5: Solve for x
    x = 89,240,080,752.09/325,806.50
  6. Step 6: Final answer
    x = 273,905.16

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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.