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Finding the Fourth Proportional to 324,357.48, 486,328.31 and 134,949.24

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Solution

The fourth proportional to 324,357.48, 486,328.31 and 134,949.24 is: 202,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,357.48 : 486,328.31 = 134,949.24 : x
  2. Step 2: Convert to fraction form
    324,357.48/486,328.31 = 134,949.24/x
  3. Step 3: Cross multiply
    324,357.48x = 486,328.31 × 134,949.24
  4. Step 4: Simplify right side
    324,357.48x = 65,629,635,150.24
  5. Step 5: Solve for x
    x = 65,629,635,150.24/324,357.48
  6. Step 6: Final answer
    x = 202,337.36

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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.