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Finding the Fourth Proportional to 108,671.44, 149,960.28 and 60,916

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Solution

The fourth proportional to 108,671.44, 149,960.28 and 60,916 is: 84,060.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,671.44 : 149,960.28 = 60,916 : x
  2. Step 2: Convert to fraction form
    108,671.44/149,960.28 = 60,916/x
  3. Step 3: Cross multiply
    108,671.44x = 149,960.28 × 60,916
  4. Step 4: Simplify right side
    108,671.44x = 9,134,980,416.48
  5. Step 5: Solve for x
    x = 9,134,980,416.48/108,671.44
  6. Step 6: Final answer
    x = 84,060.54

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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.