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Finding the Fourth Proportional to 80,200.44, 120,300.12 and 62,685

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Solution

The fourth proportional to 80,200.44, 120,300.12 and 62,685 is: 94,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,200.44 : 120,300.12 = 62,685 : x
  2. Step 2: Convert to fraction form
    80,200.44/120,300.12 = 62,685/x
  3. Step 3: Cross multiply
    80,200.44x = 120,300.12 × 62,685
  4. Step 4: Simplify right side
    80,200.44x = 7,541,013,022.20
  5. Step 5: Solve for x
    x = 7,541,013,022.20/80,200.44
  6. Step 6: Final answer
    x = 94,027.08

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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.