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Finding the Fourth Proportional to 115,172.92, 172,790.57 and 35,208.73

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Solution

The fourth proportional to 115,172.92, 172,790.57 and 35,208.73 is: 52,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,172.92 : 172,790.57 = 35,208.73 : x
  2. Step 2: Convert to fraction form
    115,172.92/172,790.57 = 35,208.73/x
  3. Step 3: Cross multiply
    115,172.92x = 172,790.57 × 35,208.73
  4. Step 4: Simplify right side
    115,172.92x = 6,083,736,525.68
  5. Step 5: Solve for x
    x = 6,083,736,525.68/115,172.92
  6. Step 6: Final answer
    x = 52,822.63

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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.