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Finding the Fourth Proportional to 275,336.92, 412,760.70 and 97,820.52

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Solution

The fourth proportional to 275,336.92, 412,760.70 and 97,820.52 is: 146,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,336.92 : 412,760.70 = 97,820.52 : x
  2. Step 2: Convert to fraction form
    275,336.92/412,760.70 = 97,820.52/x
  3. Step 3: Cross multiply
    275,336.92x = 412,760.70 × 97,820.52
  4. Step 4: Simplify right side
    275,336.92x = 40,376,466,309.56
  5. Step 5: Solve for x
    x = 40,376,466,309.56/275,336.92
  6. Step 6: Final answer
    x = 146,643.85

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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.