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Finding the Fourth Proportional to 234,231.22, 323,236.40 and 126,798.90

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Solution

The fourth proportional to 234,231.22, 323,236.40 and 126,798.90 is: 174,981.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,231.22 : 323,236.40 = 126,798.90 : x
  2. Step 2: Convert to fraction form
    234,231.22/323,236.40 = 126,798.90/x
  3. Step 3: Cross multiply
    234,231.22x = 323,236.40 × 126,798.90
  4. Step 4: Simplify right side
    234,231.22x = 40,986,019,959.96
  5. Step 5: Solve for x
    x = 40,986,019,959.96/234,231.22
  6. Step 6: Final answer
    x = 174,981.03

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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.