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Finding the Fourth Proportional to 108,257.46, 149,394.87 and 60,510.80

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Solution

The fourth proportional to 108,257.46, 149,394.87 and 60,510.80 is: 83,504.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,257.46 : 149,394.87 = 60,510.80 : x
  2. Step 2: Convert to fraction form
    108,257.46/149,394.87 = 60,510.80/x
  3. Step 3: Cross multiply
    108,257.46x = 149,394.87 × 60,510.80
  4. Step 4: Simplify right side
    108,257.46x = 9,040,002,352.62
  5. Step 5: Solve for x
    x = 9,040,002,352.62/108,257.46
  6. Step 6: Final answer
    x = 83,504.66

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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.