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Finding the Fourth Proportional to 92,579.76, 127,759.95 and 50,138.46

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Solution

The fourth proportional to 92,579.76, 127,759.95 and 50,138.46 is: 69,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,579.76 : 127,759.95 = 50,138.46 : x
  2. Step 2: Convert to fraction form
    92,579.76/127,759.95 = 50,138.46/x
  3. Step 3: Cross multiply
    92,579.76x = 127,759.95 × 50,138.46
  4. Step 4: Simplify right side
    92,579.76x = 6,405,687,142.68
  5. Step 5: Solve for x
    x = 6,405,687,142.68/92,579.76
  6. Step 6: Final answer
    x = 69,191.01

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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.