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Finding the Fourth Proportional to 329,172.48, 454,257.60 and 178,270.08

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Solution

The fourth proportional to 329,172.48, 454,257.60 and 178,270.08 is: 246,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,172.48 : 454,257.60 = 178,270.08 : x
  2. Step 2: Convert to fraction form
    329,172.48/454,257.60 = 178,270.08/x
  3. Step 3: Cross multiply
    329,172.48x = 454,257.60 × 178,270.08
  4. Step 4: Simplify right side
    329,172.48x = 80,980,538,692.61
  5. Step 5: Solve for x
    x = 80,980,538,692.61/329,172.48
  6. Step 6: Final answer
    x = 246,012.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.