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Finding the Fourth Proportional to 185,751.76, 256,335.18 and 100,869.43

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Solution

The fourth proportional to 185,751.76, 256,335.18 and 100,869.43 is: 139,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,751.76 : 256,335.18 = 100,869.43 : x
  2. Step 2: Convert to fraction form
    185,751.76/256,335.18 = 100,869.43/x
  3. Step 3: Cross multiply
    185,751.76x = 256,335.18 × 100,869.43
  4. Step 4: Simplify right side
    185,751.76x = 25,856,383,495.55
  5. Step 5: Solve for x
    x = 25,856,383,495.55/185,751.76
  6. Step 6: Final answer
    x = 139,198.59

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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.