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Finding the Fourth Proportional to 331,803.27, 497,706.80 and 82,485.27

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Solution

The fourth proportional to 331,803.27, 497,706.80 and 82,485.27 is: 123,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,803.27 : 497,706.80 = 82,485.27 : x
  2. Step 2: Convert to fraction form
    331,803.27/497,706.80 = 82,485.27/x
  3. Step 3: Cross multiply
    331,803.27x = 497,706.80 × 82,485.27
  4. Step 4: Simplify right side
    331,803.27x = 41,053,479,366.41
  5. Step 5: Solve for x
    x = 41,053,479,366.41/331,803.27
  6. Step 6: Final answer
    x = 123,728.37

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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.