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Finding the Fourth Proportional to 108,659.88, 149,951.73 and 60,262.75

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Solution

The fourth proportional to 108,659.88, 149,951.73 and 60,262.75 is: 83,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,659.88 : 149,951.73 = 60,262.75 : x
  2. Step 2: Convert to fraction form
    108,659.88/149,951.73 = 60,262.75/x
  3. Step 3: Cross multiply
    108,659.88x = 149,951.73 × 60,262.75
  4. Step 4: Simplify right side
    108,659.88x = 9,036,503,617.06
  5. Step 5: Solve for x
    x = 9,036,503,617.06/108,659.88
  6. Step 6: Final answer
    x = 83,163.20

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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.