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Finding the Fourth Proportional to 300,559.41, 450,869.19 and 111,069.53

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Solution

The fourth proportional to 300,559.41, 450,869.19 and 111,069.53 is: 166,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,559.41 : 450,869.19 = 111,069.53 : x
  2. Step 2: Convert to fraction form
    300,559.41/450,869.19 = 111,069.53/x
  3. Step 3: Cross multiply
    300,559.41x = 450,869.19 × 111,069.53
  4. Step 4: Simplify right side
    300,559.41x = 50,077,828,044.68
  5. Step 5: Solve for x
    x = 50,077,828,044.68/300,559.41
  6. Step 6: Final answer
    x = 166,615.41

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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.