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Finding the Fourth Proportional to 550,711.20, 825,872.40 and 195,736.80

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Solution

The fourth proportional to 550,711.20, 825,872.40 and 195,736.80 is: 293,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,711.20 : 825,872.40 = 195,736.80 : x
  2. Step 2: Convert to fraction form
    550,711.20/825,872.40 = 195,736.80/x
  3. Step 3: Cross multiply
    550,711.20x = 825,872.40 × 195,736.80
  4. Step 4: Simplify right side
    550,711.20x = 161,653,620,784.32
  5. Step 5: Solve for x
    x = 161,653,620,784.32/550,711.20
  6. Step 6: Final answer
    x = 293,536.11

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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.