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Finding the Fourth Proportional to 236,375.66, 326,199.48 and 128,945.36

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Solution

The fourth proportional to 236,375.66, 326,199.48 and 128,945.36 is: 177,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,375.66 : 326,199.48 = 128,945.36 : x
  2. Step 2: Convert to fraction form
    236,375.66/326,199.48 = 128,945.36/x
  3. Step 3: Cross multiply
    236,375.66x = 326,199.48 × 128,945.36
  4. Step 4: Simplify right side
    236,375.66x = 42,061,909,380.41
  5. Step 5: Solve for x
    x = 42,061,909,380.41/236,375.66
  6. Step 6: Final answer
    x = 177,945.18

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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.