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Finding the Fourth Proportional to 297,343.80, 445,104.45 and 163,815.30

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Solution

The fourth proportional to 297,343.80, 445,104.45 and 163,815.30 is: 245,220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,343.80 : 445,104.45 = 163,815.30 : x
  2. Step 2: Convert to fraction form
    297,343.80/445,104.45 = 163,815.30/x
  3. Step 3: Cross multiply
    297,343.80x = 445,104.45 × 163,815.30
  4. Step 4: Simplify right side
    297,343.80x = 72,914,919,008.09
  5. Step 5: Solve for x
    x = 72,914,919,008.09/297,343.80
  6. Step 6: Final answer
    x = 245,220.92

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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.