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Finding the Fourth Proportional to 175,615.80, 263,121.30 and 81,929.40

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Solution

The fourth proportional to 175,615.80, 263,121.30 and 81,929.40 is: 122,753.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,615.80 : 263,121.30 = 81,929.40 : x
  2. Step 2: Convert to fraction form
    175,615.80/263,121.30 = 81,929.40/x
  3. Step 3: Cross multiply
    175,615.80x = 263,121.30 × 81,929.40
  4. Step 4: Simplify right side
    175,615.80x = 21,557,370,236.22
  5. Step 5: Solve for x
    x = 21,557,370,236.22/175,615.80
  6. Step 6: Final answer
    x = 122,753.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.