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Finding the Fourth Proportional to 324,502.42, 486,753.36 and 122,136.34

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Solution

The fourth proportional to 324,502.42, 486,753.36 and 122,136.34 is: 183,204.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,502.42 : 486,753.36 = 122,136.34 : x
  2. Step 2: Convert to fraction form
    324,502.42/486,753.36 = 122,136.34/x
  3. Step 3: Cross multiply
    324,502.42x = 486,753.36 × 122,136.34
  4. Step 4: Simplify right side
    324,502.42x = 59,450,273,873.10
  5. Step 5: Solve for x
    x = 59,450,273,873.10/324,502.42
  6. Step 6: Final answer
    x = 183,204.41

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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.