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Finding the Fourth Proportional to 225,851.43, 311,672.85 and 123,874.82

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Solution

The fourth proportional to 225,851.43, 311,672.85 and 123,874.82 is: 170,946.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,851.43 : 311,672.85 = 123,874.82 : x
  2. Step 2: Convert to fraction form
    225,851.43/311,672.85 = 123,874.82/x
  3. Step 3: Cross multiply
    225,851.43x = 311,672.85 × 123,874.82
  4. Step 4: Simplify right side
    225,851.43x = 38,608,416,634.27
  5. Step 5: Solve for x
    x = 38,608,416,634.27/225,851.43
  6. Step 6: Final answer
    x = 170,946.08

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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.