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Finding the Fourth Proportional to 159,725.88, 220,432.64 and 92,657.88

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Solution

The fourth proportional to 159,725.88, 220,432.64 and 92,657.88 is: 127,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,725.88 : 220,432.64 = 92,657.88 : x
  2. Step 2: Convert to fraction form
    159,725.88/220,432.64 = 92,657.88/x
  3. Step 3: Cross multiply
    159,725.88x = 220,432.64 × 92,657.88
  4. Step 4: Simplify right side
    159,725.88x = 20,424,821,105.20
  5. Step 5: Solve for x
    x = 20,424,821,105.20/159,725.88
  6. Step 6: Final answer
    x = 127,874.21

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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.