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Finding the Fourth Proportional to 85,259.54, 127,891.74 and 26,093.90

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Solution

The fourth proportional to 85,259.54, 127,891.74 and 26,093.90 is: 39,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,259.54 : 127,891.74 = 26,093.90 : x
  2. Step 2: Convert to fraction form
    85,259.54/127,891.74 = 26,093.90/x
  3. Step 3: Cross multiply
    85,259.54x = 127,891.74 × 26,093.90
  4. Step 4: Simplify right side
    85,259.54x = 3,337,194,274.39
  5. Step 5: Solve for x
    x = 3,337,194,274.39/85,259.54
  6. Step 6: Final answer
    x = 39,141.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.