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Finding the Fourth Proportional to 187,940.76, 281,840.90 and 75,583.04

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Solution

The fourth proportional to 187,940.76, 281,840.90 and 75,583.04 is: 113,346.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,940.76 : 281,840.90 = 75,583.04 : x
  2. Step 2: Convert to fraction form
    187,940.76/281,840.90 = 75,583.04/x
  3. Step 3: Cross multiply
    187,940.76x = 281,840.90 × 75,583.04
  4. Step 4: Simplify right side
    187,940.76x = 21,302,392,018.34
  5. Step 5: Solve for x
    x = 21,302,392,018.34/187,940.76
  6. Step 6: Final answer
    x = 113,346.31

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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.