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Finding the Fourth Proportional to 236,104.09, 325,814.13 and 128,671.78

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Solution

The fourth proportional to 236,104.09, 325,814.13 and 128,671.78 is: 177,561.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,104.09 : 325,814.13 = 128,671.78 : x
  2. Step 2: Convert to fraction form
    236,104.09/325,814.13 = 128,671.78/x
  3. Step 3: Cross multiply
    236,104.09x = 325,814.13 × 128,671.78
  4. Step 4: Simplify right side
    236,104.09x = 41,923,084,056.25
  5. Step 5: Solve for x
    x = 41,923,084,056.25/236,104.09
  6. Step 6: Final answer
    x = 177,561.87

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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.