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Finding the Fourth Proportional to 185,432.76, 255,886.50 and 108,939.96

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Solution

The fourth proportional to 185,432.76, 255,886.50 and 108,939.96 is: 150,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,432.76 : 255,886.50 = 108,939.96 : x
  2. Step 2: Convert to fraction form
    185,432.76/255,886.50 = 108,939.96/x
  3. Step 3: Cross multiply
    185,432.76x = 255,886.50 × 108,939.96
  4. Step 4: Simplify right side
    185,432.76x = 27,876,265,074.54
  5. Step 5: Solve for x
    x = 27,876,265,074.54/185,432.76
  6. Step 6: Final answer
    x = 150,330.85

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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.