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Finding the Fourth Proportional to 324,558.52, 486,884.22 and 99,937.96

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Solution

The fourth proportional to 324,558.52, 486,884.22 and 99,937.96 is: 149,921.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,558.52 : 486,884.22 = 99,937.96 : x
  2. Step 2: Convert to fraction form
    324,558.52/486,884.22 = 99,937.96/x
  3. Step 3: Cross multiply
    324,558.52x = 486,884.22 × 99,937.96
  4. Step 4: Simplify right side
    324,558.52x = 48,658,215,702.99
  5. Step 5: Solve for x
    x = 48,658,215,702.99/324,558.52
  6. Step 6: Final answer
    x = 149,921.24

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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.