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Finding the Fourth Proportional to 132,670.76, 198,797.70 and 92,650.28

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Solution

The fourth proportional to 132,670.76, 198,797.70 and 92,650.28 is: 138,829.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,670.76 : 198,797.70 = 92,650.28 : x
  2. Step 2: Convert to fraction form
    132,670.76/198,797.70 = 92,650.28/x
  3. Step 3: Cross multiply
    132,670.76x = 198,797.70 × 92,650.28
  4. Step 4: Simplify right side
    132,670.76x = 18,418,662,568.36
  5. Step 5: Solve for x
    x = 18,418,662,568.36/132,670.76
  6. Step 6: Final answer
    x = 138,829.86

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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.