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Finding the Fourth Proportional to 236,090.68, 325,800.84 and 128,661.64

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Solution

The fourth proportional to 236,090.68, 325,800.84 and 128,661.64 is: 177,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,090.68 : 325,800.84 = 128,661.64 : x
  2. Step 2: Convert to fraction form
    236,090.68/325,800.84 = 128,661.64/x
  3. Step 3: Cross multiply
    236,090.68x = 325,800.84 × 128,661.64
  4. Step 4: Simplify right side
    236,090.68x = 41,918,070,387.78
  5. Step 5: Solve for x
    x = 41,918,070,387.78/236,090.68
  6. Step 6: Final answer
    x = 177,550.72

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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.