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Finding the Fourth Proportional to 110,539.67, 165,793.35 and 54,364.70

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Solution

The fourth proportional to 110,539.67, 165,793.35 and 54,364.70 is: 81,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,539.67 : 165,793.35 = 54,364.70 : x
  2. Step 2: Convert to fraction form
    110,539.67/165,793.35 = 54,364.70/x
  3. Step 3: Cross multiply
    110,539.67x = 165,793.35 × 54,364.70
  4. Step 4: Simplify right side
    110,539.67x = 9,013,305,734.75
  5. Step 5: Solve for x
    x = 9,013,305,734.75/110,539.67
  6. Step 6: Final answer
    x = 81,539.10

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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.