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Finding the Fourth Proportional to 186,939.03, 280,500.03 and 115,842.63

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Solution

The fourth proportional to 186,939.03, 280,500.03 and 115,842.63 is: 173,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,939.03 : 280,500.03 = 115,842.63 : x
  2. Step 2: Convert to fraction form
    186,939.03/280,500.03 = 115,842.63/x
  3. Step 3: Cross multiply
    186,939.03x = 280,500.03 × 115,842.63
  4. Step 4: Simplify right side
    186,939.03x = 32,493,861,190.28
  5. Step 5: Solve for x
    x = 32,493,861,190.28/186,939.03
  6. Step 6: Final answer
    x = 173,820.64

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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.