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Finding the Fourth Proportional to 324,781.92, 487,172.88 and 114,370.56

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Solution

The fourth proportional to 324,781.92, 487,172.88 and 114,370.56 is: 171,555.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,781.92 : 487,172.88 = 114,370.56 : x
  2. Step 2: Convert to fraction form
    324,781.92/487,172.88 = 114,370.56/x
  3. Step 3: Cross multiply
    324,781.92x = 487,172.88 × 114,370.56
  4. Step 4: Simplify right side
    324,781.92x = 55,718,235,102.41
  5. Step 5: Solve for x
    x = 55,718,235,102.41/324,781.92
  6. Step 6: Final answer
    x = 171,555.84

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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.