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Finding the Fourth Proportional to 324,388.73, 486,583.13 and 96,687.87

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Solution

The fourth proportional to 324,388.73, 486,583.13 and 96,687.87 is: 145,031.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,388.73 : 486,583.13 = 96,687.87 : x
  2. Step 2: Convert to fraction form
    324,388.73/486,583.13 = 96,687.87/x
  3. Step 3: Cross multiply
    324,388.73x = 486,583.13 × 96,687.87
  4. Step 4: Simplify right side
    324,388.73x = 47,046,686,417.63
  5. Step 5: Solve for x
    x = 47,046,686,417.63/324,388.73
  6. Step 6: Final answer
    x = 145,031.82

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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.