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Finding the Fourth Proportional to 324,937.82, 487,219.12 and 100,237.92

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Solution

The fourth proportional to 324,937.82, 487,219.12 and 100,237.92 is: 150,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,937.82 : 487,219.12 = 100,237.92 : x
  2. Step 2: Convert to fraction form
    324,937.82/487,219.12 = 100,237.92/x
  3. Step 3: Cross multiply
    324,937.82x = 487,219.12 × 100,237.92
  4. Step 4: Simplify right side
    324,937.82x = 48,837,831,173.03
  5. Step 5: Solve for x
    x = 48,837,831,173.03/324,937.82
  6. Step 6: Final answer
    x = 150,299.01

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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.