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Finding the Fourth Proportional to 185,570.44, 256,086.31 and 100,687.51

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Solution

The fourth proportional to 185,570.44, 256,086.31 and 100,687.51 is: 138,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,570.44 : 256,086.31 = 100,687.51 : x
  2. Step 2: Convert to fraction form
    185,570.44/256,086.31 = 100,687.51/x
  3. Step 3: Cross multiply
    185,570.44x = 256,086.31 × 100,687.51
  4. Step 4: Simplify right side
    185,570.44x = 25,784,691,715.68
  5. Step 5: Solve for x
    x = 25,784,691,715.68/185,570.44
  6. Step 6: Final answer
    x = 138,948.27

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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.