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Finding the Fourth Proportional to 132,546.60, 198,690.30 and 118,549.80

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Solution

The fourth proportional to 132,546.60, 198,690.30 and 118,549.80 is: 177,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,546.60 : 198,690.30 = 118,549.80 : x
  2. Step 2: Convert to fraction form
    132,546.60/198,690.30 = 118,549.80/x
  3. Step 3: Cross multiply
    132,546.60x = 198,690.30 × 118,549.80
  4. Step 4: Simplify right side
    132,546.60x = 23,554,695,326.94
  5. Step 5: Solve for x
    x = 23,554,695,326.94/132,546.60
  6. Step 6: Final answer
    x = 177,708.79

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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.