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Finding the Fourth Proportional to 236,091.77, 325,797.11 and 128,659.49

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Solution

The fourth proportional to 236,091.77, 325,797.11 and 128,659.49 is: 177,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,091.77 : 325,797.11 = 128,659.49 : x
  2. Step 2: Convert to fraction form
    236,091.77/325,797.11 = 128,659.49/x
  3. Step 3: Cross multiply
    236,091.77x = 325,797.11 × 128,659.49
  4. Step 4: Simplify right side
    236,091.77x = 41,916,888,387.09
  5. Step 5: Solve for x
    x = 41,916,888,387.09/236,091.77
  6. Step 6: Final answer
    x = 177,544.90

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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.