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Finding the Fourth Proportional to 324,108.80, 486,017.40 and 146,524.40

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Solution

The fourth proportional to 324,108.80, 486,017.40 and 146,524.40 is: 219,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,108.80 : 486,017.40 = 146,524.40 : x
  2. Step 2: Convert to fraction form
    324,108.80/486,017.40 = 146,524.40/x
  3. Step 3: Cross multiply
    324,108.80x = 486,017.40 × 146,524.40
  4. Step 4: Simplify right side
    324,108.80x = 71,213,407,924.56
  5. Step 5: Solve for x
    x = 71,213,407,924.56/324,108.80
  6. Step 6: Final answer
    x = 219,720.69

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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.