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Finding the Fourth Proportional to 186,769.73, 280,172.01 and 74,422.73

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Solution

The fourth proportional to 186,769.73, 280,172.01 and 74,422.73 is: 111,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,769.73 : 280,172.01 = 74,422.73 : x
  2. Step 2: Convert to fraction form
    186,769.73/280,172.01 = 74,422.73/x
  3. Step 3: Cross multiply
    186,769.73x = 280,172.01 × 74,422.73
  4. Step 4: Simplify right side
    186,769.73x = 20,851,165,853.79
  5. Step 5: Solve for x
    x = 20,851,165,853.79/186,769.73
  6. Step 6: Final answer
    x = 111,641.03

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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.