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Finding the Fourth Proportional to 118,065.58, 162,934.31 and 67,077.38

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Solution

The fourth proportional to 118,065.58, 162,934.31 and 67,077.38 is: 92,568.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,065.58 : 162,934.31 = 67,077.38 : x
  2. Step 2: Convert to fraction form
    118,065.58/162,934.31 = 67,077.38/x
  3. Step 3: Cross multiply
    118,065.58x = 162,934.31 × 67,077.38
  4. Step 4: Simplify right side
    118,065.58x = 10,929,207,201.94
  5. Step 5: Solve for x
    x = 10,929,207,201.94/118,065.58
  6. Step 6: Final answer
    x = 92,568.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.