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Finding the Fourth Proportional to 329,663.20, 494,883.60 and 187,621.60

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Solution

The fourth proportional to 329,663.20, 494,883.60 and 187,621.60 is: 281,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,663.20 : 494,883.60 = 187,621.60 : x
  2. Step 2: Convert to fraction form
    329,663.20/494,883.60 = 187,621.60/x
  3. Step 3: Cross multiply
    329,663.20x = 494,883.60 × 187,621.60
  4. Step 4: Simplify right side
    329,663.20x = 92,850,852,845.76
  5. Step 5: Solve for x
    x = 92,850,852,845.76/329,663.20
  6. Step 6: Final answer
    x = 281,653.68

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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.