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Finding the Fourth Proportional to 310,321.07, 465,480.76 and 82,616.69

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Solution

The fourth proportional to 310,321.07, 465,480.76 and 82,616.69 is: 123,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,321.07 : 465,480.76 = 82,616.69 : x
  2. Step 2: Convert to fraction form
    310,321.07/465,480.76 = 82,616.69/x
  3. Step 3: Cross multiply
    310,321.07x = 465,480.76 × 82,616.69
  4. Step 4: Simplify right side
    310,321.07x = 38,456,479,649.88
  5. Step 5: Solve for x
    x = 38,456,479,649.88/310,321.07
  6. Step 6: Final answer
    x = 123,924.81

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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.