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Finding the Fourth Proportional to 172,786.77, 259,215.39 and 97,940.34

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Solution

The fourth proportional to 172,786.77, 259,215.39 and 97,940.34 is: 146,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,786.77 : 259,215.39 = 97,940.34 : x
  2. Step 2: Convert to fraction form
    172,786.77/259,215.39 = 97,940.34/x
  3. Step 3: Cross multiply
    172,786.77x = 259,215.39 × 97,940.34
  4. Step 4: Simplify right side
    172,786.77x = 25,387,643,429.83
  5. Step 5: Solve for x
    x = 25,387,643,429.83/172,786.77
  6. Step 6: Final answer
    x = 146,930.48

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1.5x scale

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.