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Finding the Fourth Proportional to 117,818.82, 176,761.17 and 38,988.54

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Solution

The fourth proportional to 117,818.82, 176,761.17 and 38,988.54 is: 58,493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,818.82 : 176,761.17 = 38,988.54 : x
  2. Step 2: Convert to fraction form
    117,818.82/176,761.17 = 38,988.54/x
  3. Step 3: Cross multiply
    117,818.82x = 176,761.17 × 38,988.54
  4. Step 4: Simplify right side
    117,818.82x = 6,891,659,946.99
  5. Step 5: Solve for x
    x = 6,891,659,946.99/117,818.82
  6. Step 6: Final answer
    x = 58,493.71

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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.