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Finding the Fourth Proportional to 297,844.80, 446,810.40 and 98,131.20

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Solution

The fourth proportional to 297,844.80, 446,810.40 and 98,131.20 is: 147,211.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,844.80 : 446,810.40 = 98,131.20 : x
  2. Step 2: Convert to fraction form
    297,844.80/446,810.40 = 98,131.20/x
  3. Step 3: Cross multiply
    297,844.80x = 446,810.40 × 98,131.20
  4. Step 4: Simplify right side
    297,844.80x = 43,846,040,724.48
  5. Step 5: Solve for x
    x = 43,846,040,724.48/297,844.80
  6. Step 6: Final answer
    x = 147,211.03

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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.