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Finding the Fourth Proportional to 432,729.99, 649,156.41 and 133,235.46

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Solution

The fourth proportional to 432,729.99, 649,156.41 and 133,235.46 is: 199,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,729.99 : 649,156.41 = 133,235.46 : x
  2. Step 2: Convert to fraction form
    432,729.99/649,156.41 = 133,235.46/x
  3. Step 3: Cross multiply
    432,729.99x = 649,156.41 × 133,235.46
  4. Step 4: Simplify right side
    432,729.99x = 86,490,652,898.30
  5. Step 5: Solve for x
    x = 86,490,652,898.30/432,729.99
  6. Step 6: Final answer
    x = 199,872.10

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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.