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Finding the Fourth Proportional to 324,472.23, 486,626.20 and 96,715.28

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Solution

The fourth proportional to 324,472.23, 486,626.20 and 96,715.28 is: 145,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,472.23 : 486,626.20 = 96,715.28 : x
  2. Step 2: Convert to fraction form
    324,472.23/486,626.20 = 96,715.28/x
  3. Step 3: Cross multiply
    324,472.23x = 486,626.20 × 96,715.28
  4. Step 4: Simplify right side
    324,472.23x = 47,064,190,163.11
  5. Step 5: Solve for x
    x = 47,064,190,163.11/324,472.23
  6. Step 6: Final answer
    x = 145,048.44

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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.