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Finding the Fourth Proportional to 331,798.01, 497,696.87 and 82,480.01

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Solution

The fourth proportional to 331,798.01, 497,696.87 and 82,480.01 is: 123,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,798.01 : 497,696.87 = 82,480.01 : x
  2. Step 2: Convert to fraction form
    331,798.01/497,696.87 = 82,480.01/x
  3. Step 3: Cross multiply
    331,798.01x = 497,696.87 × 82,480.01
  4. Step 4: Simplify right side
    331,798.01x = 41,050,040,532.28
  5. Step 5: Solve for x
    x = 41,050,040,532.28/331,798.01
  6. Step 6: Final answer
    x = 123,719.97

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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.