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Finding the Fourth Proportional to 324,544.22, 486,871.68 and 144,694.90

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Solution

The fourth proportional to 324,544.22, 486,871.68 and 144,694.90 is: 217,067.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,544.22 : 486,871.68 = 144,694.90 : x
  2. Step 2: Convert to fraction form
    324,544.22/486,871.68 = 144,694.90/x
  3. Step 3: Cross multiply
    324,544.22x = 486,871.68 × 144,694.90
  4. Step 4: Simplify right side
    324,544.22x = 70,447,849,050.43
  5. Step 5: Solve for x
    x = 70,447,849,050.43/324,544.22
  6. Step 6: Final answer
    x = 217,067.03

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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.