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Finding the Fourth Proportional to 236,086.76, 325,799.76 and 128,656.80

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Solution

The fourth proportional to 236,086.76, 325,799.76 and 128,656.80 is: 177,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,086.76 : 325,799.76 = 128,656.80 : x
  2. Step 2: Convert to fraction form
    236,086.76/325,799.76 = 128,656.80/x
  3. Step 3: Cross multiply
    236,086.76x = 325,799.76 × 128,656.80
  4. Step 4: Simplify right side
    236,086.76x = 41,916,354,562.37
  5. Step 5: Solve for x
    x = 41,916,354,562.37/236,086.76
  6. Step 6: Final answer
    x = 177,546.40

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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.