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Finding the Fourth Proportional to 108,469.88, 149,689.03 and 60,073.40

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Solution

The fourth proportional to 108,469.88, 149,689.03 and 60,073.40 is: 82,901.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,469.88 : 149,689.03 = 60,073.40 : x
  2. Step 2: Convert to fraction form
    108,469.88/149,689.03 = 60,073.40/x
  3. Step 3: Cross multiply
    108,469.88x = 149,689.03 × 60,073.40
  4. Step 4: Simplify right side
    108,469.88x = 8,992,328,076.17
  5. Step 5: Solve for x
    x = 8,992,328,076.17/108,469.88
  6. Step 6: Final answer
    x = 82,901.61

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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.