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Finding the Fourth Proportional to 324,353.30, 486,576.45 and 99,732.60

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Solution

The fourth proportional to 324,353.30, 486,576.45 and 99,732.60 is: 149,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,353.30 : 486,576.45 = 99,732.60 : x
  2. Step 2: Convert to fraction form
    324,353.30/486,576.45 = 99,732.60/x
  3. Step 3: Cross multiply
    324,353.30x = 486,576.45 × 99,732.60
  4. Step 4: Simplify right side
    324,353.30x = 48,527,534,457.27
  5. Step 5: Solve for x
    x = 48,527,534,457.27/324,353.30
  6. Step 6: Final answer
    x = 149,613.20

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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.