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Finding the Fourth Proportional to 186,766.73, 280,167.51 and 74,419.73

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Solution

The fourth proportional to 186,766.73, 280,167.51 and 74,419.73 is: 111,636.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,766.73 : 280,167.51 = 74,419.73 : x
  2. Step 2: Convert to fraction form
    186,766.73/280,167.51 = 74,419.73/x
  3. Step 3: Cross multiply
    186,766.73x = 280,167.51 × 74,419.73
  4. Step 4: Simplify right side
    186,766.73x = 20,849,990,448.97
  5. Step 5: Solve for x
    x = 20,849,990,448.97/186,766.73
  6. Step 6: Final answer
    x = 111,636.53

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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.