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Finding the Fourth Proportional to 132,356.60, 198,534.90 and 43,623.80

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Solution

The fourth proportional to 132,356.60, 198,534.90 and 43,623.80 is: 65,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,356.60 : 198,534.90 = 43,623.80 : x
  2. Step 2: Convert to fraction form
    132,356.60/198,534.90 = 43,623.80/x
  3. Step 3: Cross multiply
    132,356.60x = 198,534.90 × 43,623.80
  4. Step 4: Simplify right side
    132,356.60x = 8,660,846,770.62
  5. Step 5: Solve for x
    x = 8,660,846,770.62/132,356.60
  6. Step 6: Final answer
    x = 65,435.70

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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.