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Finding the Fourth Proportional to 185,780.44, 256,377.45 and 100,895.68

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Solution

The fourth proportional to 185,780.44, 256,377.45 and 100,895.68 is: 139,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,780.44 : 256,377.45 = 100,895.68 : x
  2. Step 2: Convert to fraction form
    185,780.44/256,377.45 = 100,895.68/x
  3. Step 3: Cross multiply
    185,780.44x = 256,377.45 × 100,895.68
  4. Step 4: Simplify right side
    185,780.44x = 25,867,377,154.42
  5. Step 5: Solve for x
    x = 25,867,377,154.42/185,780.44
  6. Step 6: Final answer
    x = 139,236.28

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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.