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Finding the Fourth Proportional to 117,654.27, 176,336.82 and 54,388.82

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Solution

The fourth proportional to 117,654.27, 176,336.82 and 54,388.82 is: 81,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,654.27 : 176,336.82 = 54,388.82 : x
  2. Step 2: Convert to fraction form
    117,654.27/176,336.82 = 54,388.82/x
  3. Step 3: Cross multiply
    117,654.27x = 176,336.82 × 54,388.82
  4. Step 4: Simplify right side
    117,654.27x = 9,590,750,680.67
  5. Step 5: Solve for x
    x = 9,590,750,680.67/117,654.27
  6. Step 6: Final answer
    x = 81,516.38

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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.