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Finding the Fourth Proportional to 117,682.74, 176,387.22 and 54,369.90

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Solution

The fourth proportional to 117,682.74, 176,387.22 and 54,369.90 is: 81,491.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,682.74 : 176,387.22 = 54,369.90 : x
  2. Step 2: Convert to fraction form
    117,682.74/176,387.22 = 54,369.90/x
  3. Step 3: Cross multiply
    117,682.74x = 176,387.22 × 54,369.90
  4. Step 4: Simplify right side
    117,682.74x = 9,590,155,512.68
  5. Step 5: Solve for x
    x = 9,590,155,512.68/117,682.74
  6. Step 6: Final answer
    x = 81,491.61

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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.