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Finding the Fourth Proportional to 85,266.60, 117,664.26 and 47,540.52

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Solution

The fourth proportional to 85,266.60, 117,664.26 and 47,540.52 is: 65,603.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,266.60 : 117,664.26 = 47,540.52 : x
  2. Step 2: Convert to fraction form
    85,266.60/117,664.26 = 47,540.52/x
  3. Step 3: Cross multiply
    85,266.60x = 117,664.26 × 47,540.52
  4. Step 4: Simplify right side
    85,266.60x = 5,593,820,105.82
  5. Step 5: Solve for x
    x = 5,593,820,105.82/85,266.60
  6. Step 6: Final answer
    x = 65,603.88

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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.