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Finding the Fourth Proportional to 172,735.74, 259,251.30 and 67,628.52

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Solution

The fourth proportional to 172,735.74, 259,251.30 and 67,628.52 is: 101,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,735.74 : 259,251.30 = 67,628.52 : x
  2. Step 2: Convert to fraction form
    172,735.74/259,251.30 = 67,628.52/x
  3. Step 3: Cross multiply
    172,735.74x = 259,251.30 × 67,628.52
  4. Step 4: Simplify right side
    172,735.74x = 17,532,781,727.08
  5. Step 5: Solve for x
    x = 17,532,781,727.08/172,735.74
  6. Step 6: Final answer
    x = 101,500.60

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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.