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Finding the Fourth Proportional to 199,046.40, 298,563.20 and 65,932.80

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Solution

The fourth proportional to 199,046.40, 298,563.20 and 65,932.80 is: 98,897.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,046.40 : 298,563.20 = 65,932.80 : x
  2. Step 2: Convert to fraction form
    199,046.40/298,563.20 = 65,932.80/x
  3. Step 3: Cross multiply
    199,046.40x = 298,563.20 × 65,932.80
  4. Step 4: Simplify right side
    199,046.40x = 19,685,107,752.96
  5. Step 5: Solve for x
    x = 19,685,107,752.96/199,046.40
  6. Step 6: Final answer
    x = 98,897.08

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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.