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Finding the Fourth Proportional to 117,906.74, 176,748.94 and 58,686.43

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Solution

The fourth proportional to 117,906.74, 176,748.94 and 58,686.43 is: 87,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,906.74 : 176,748.94 = 58,686.43 : x
  2. Step 2: Convert to fraction form
    117,906.74/176,748.94 = 58,686.43/x
  3. Step 3: Cross multiply
    117,906.74x = 176,748.94 × 58,686.43
  4. Step 4: Simplify right side
    117,906.74x = 10,372,764,294.88
  5. Step 5: Solve for x
    x = 10,372,764,294.88/117,906.74
  6. Step 6: Final answer
    x = 87,974.31

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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.