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Finding the Fourth Proportional to 329,081.40, 493,674.28 and 126,670.43

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Solution

The fourth proportional to 329,081.40, 493,674.28 and 126,670.43 is: 190,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,081.40 : 493,674.28 = 126,670.43 : x
  2. Step 2: Convert to fraction form
    329,081.40/493,674.28 = 126,670.43/x
  3. Step 3: Cross multiply
    329,081.40x = 493,674.28 × 126,670.43
  4. Step 4: Simplify right side
    329,081.40x = 62,533,934,245.05
  5. Step 5: Solve for x
    x = 62,533,934,245.05/329,081.40
  6. Step 6: Final answer
    x = 190,025.73

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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.