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Finding the Fourth Proportional to 88,168.64, 121,672.69 and 47,882.41

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Solution

The fourth proportional to 88,168.64, 121,672.69 and 47,882.41 is: 66,077.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,168.64 : 121,672.69 = 47,882.41 : x
  2. Step 2: Convert to fraction form
    88,168.64/121,672.69 = 47,882.41/x
  3. Step 3: Cross multiply
    88,168.64x = 121,672.69 × 47,882.41
  4. Step 4: Simplify right side
    88,168.64x = 5,825,982,052.27
  5. Step 5: Solve for x
    x = 5,825,982,052.27/88,168.64
  6. Step 6: Final answer
    x = 66,077.71

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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.