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Finding the Fourth Proportional to 432,372.92, 648,561.30 and 132,851

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Solution

The fourth proportional to 432,372.92, 648,561.30 and 132,851 is: 199,277.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,372.92 : 648,561.30 = 132,851 : x
  2. Step 2: Convert to fraction form
    432,372.92/648,561.30 = 132,851/x
  3. Step 3: Cross multiply
    432,372.92x = 648,561.30 × 132,851
  4. Step 4: Simplify right side
    432,372.92x = 86,162,017,266.30
  5. Step 5: Solve for x
    x = 86,162,017,266.30/432,372.92
  6. Step 6: Final answer
    x = 199,277.09

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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.