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Finding the Fourth Proportional to 117,227.66, 175,839.26 and 28,480.41

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Solution

The fourth proportional to 117,227.66, 175,839.26 and 28,480.41 is: 42,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,227.66 : 175,839.26 = 28,480.41 : x
  2. Step 2: Convert to fraction form
    117,227.66/175,839.26 = 28,480.41/x
  3. Step 3: Cross multiply
    117,227.66x = 175,839.26 × 28,480.41
  4. Step 4: Simplify right side
    117,227.66x = 5,007,974,076.49
  5. Step 5: Solve for x
    x = 5,007,974,076.49/117,227.66
  6. Step 6: Final answer
    x = 42,720.07

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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.