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Finding the Fourth Proportional to 172,146.97, 237,525.97 and 100,494.47

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Solution

The fourth proportional to 172,146.97, 237,525.97 and 100,494.47 is: 138,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,146.97 : 237,525.97 = 100,494.47 : x
  2. Step 2: Convert to fraction form
    172,146.97/237,525.97 = 100,494.47/x
  3. Step 3: Cross multiply
    172,146.97x = 237,525.97 × 100,494.47
  4. Step 4: Simplify right side
    172,146.97x = 23,870,046,997.39
  5. Step 5: Solve for x
    x = 23,870,046,997.39/172,146.97
  6. Step 6: Final answer
    x = 138,660.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.