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Finding the Fourth Proportional to 179,790.69, 269,806.43 and 74,609.76

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Solution

The fourth proportional to 179,790.69, 269,806.43 and 74,609.76 is: 111,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,790.69 : 269,806.43 = 74,609.76 : x
  2. Step 2: Convert to fraction form
    179,790.69/269,806.43 = 74,609.76/x
  3. Step 3: Cross multiply
    179,790.69x = 269,806.43 × 74,609.76
  4. Step 4: Simplify right side
    179,790.69x = 20,130,191,266.68
  5. Step 5: Solve for x
    x = 20,130,191,266.68/179,790.69
  6. Step 6: Final answer
    x = 111,964.60

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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.