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Finding the Fourth Proportional to 186,647.62, 280,087.53 and 75,839.62

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Solution

The fourth proportional to 186,647.62, 280,087.53 and 75,839.62 is: 113,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,647.62 : 280,087.53 = 75,839.62 : x
  2. Step 2: Convert to fraction form
    186,647.62/280,087.53 = 75,839.62/x
  3. Step 3: Cross multiply
    186,647.62x = 280,087.53 × 75,839.62
  4. Step 4: Simplify right side
    186,647.62x = 21,241,731,841.94
  5. Step 5: Solve for x
    x = 21,241,731,841.94/186,647.62
  6. Step 6: Final answer
    x = 113,806.60

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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.