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Finding the Fourth Proportional to 117,882.41, 162,672.86 and 66,894.10

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Solution

The fourth proportional to 117,882.41, 162,672.86 and 66,894.10 is: 92,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,882.41 : 162,672.86 = 66,894.10 : x
  2. Step 2: Convert to fraction form
    117,882.41/162,672.86 = 66,894.10/x
  3. Step 3: Cross multiply
    117,882.41x = 162,672.86 × 66,894.10
  4. Step 4: Simplify right side
    117,882.41x = 10,881,854,863.43
  5. Step 5: Solve for x
    x = 10,881,854,863.43/117,882.41
  6. Step 6: Final answer
    x = 92,311.10

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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.