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Finding the Fourth Proportional to 324,551.25, 486,889.65 and 99,871.83

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Solution

The fourth proportional to 324,551.25, 486,889.65 and 99,871.83 is: 149,827.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,551.25 : 486,889.65 = 99,871.83 : x
  2. Step 2: Convert to fraction form
    324,551.25/486,889.65 = 99,871.83/x
  3. Step 3: Cross multiply
    324,551.25x = 486,889.65 × 99,871.83
  4. Step 4: Simplify right side
    324,551.25x = 48,626,560,353.56
  5. Step 5: Solve for x
    x = 48,626,560,353.56/324,551.25
  6. Step 6: Final answer
    x = 149,827.06

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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.