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Finding the Fourth Proportional to 436,127.76, 653,978.41 and 179,912.61

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Solution

The fourth proportional to 436,127.76, 653,978.41 and 179,912.61 is: 269,780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,127.76 : 653,978.41 = 179,912.61 : x
  2. Step 2: Convert to fraction form
    436,127.76/653,978.41 = 179,912.61/x
  3. Step 3: Cross multiply
    436,127.76x = 653,978.41 × 179,912.61
  4. Step 4: Simplify right side
    436,127.76x = 117,658,962,176.97
  5. Step 5: Solve for x
    x = 117,658,962,176.97/436,127.76
  6. Step 6: Final answer
    x = 269,780.95

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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.