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Finding the Fourth Proportional to 252,940.92, 349,059.37 and 138,219.56

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Solution

The fourth proportional to 252,940.92, 349,059.37 and 138,219.56 is: 190,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,940.92 : 349,059.37 = 138,219.56 : x
  2. Step 2: Convert to fraction form
    252,940.92/349,059.37 = 138,219.56/x
  3. Step 3: Cross multiply
    252,940.92x = 349,059.37 × 138,219.56
  4. Step 4: Simplify right side
    252,940.92x = 48,246,832,535.28
  5. Step 5: Solve for x
    x = 48,246,832,535.28/252,940.92
  6. Step 6: Final answer
    x = 190,743.48

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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.