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Finding the Fourth Proportional to 65,512.94, 98,351.67 and 54,553.82

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Solution

The fourth proportional to 65,512.94, 98,351.67 and 54,553.82 is: 81,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,512.94 : 98,351.67 = 54,553.82 : x
  2. Step 2: Convert to fraction form
    65,512.94/98,351.67 = 54,553.82/x
  3. Step 3: Cross multiply
    65,512.94x = 98,351.67 × 54,553.82
  4. Step 4: Simplify right side
    65,512.94x = 5,365,459,301.88
  5. Step 5: Solve for x
    x = 5,365,459,301.88/65,512.94
  6. Step 6: Final answer
    x = 81,899.23

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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.