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Finding the Fourth Proportional to 492,480.82, 738,665.84 and 132,678.27

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Solution

The fourth proportional to 492,480.82, 738,665.84 and 132,678.27 is: 199,002.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,480.82 : 738,665.84 = 132,678.27 : x
  2. Step 2: Convert to fraction form
    492,480.82/738,665.84 = 132,678.27/x
  3. Step 3: Cross multiply
    492,480.82x = 738,665.84 × 132,678.27
  4. Step 4: Simplify right side
    492,480.82x = 98,004,906,090.99
  5. Step 5: Solve for x
    x = 98,004,906,090.99/492,480.82
  6. Step 6: Final answer
    x = 199,002.48

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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.