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Finding the Fourth Proportional to 108,080.49, 149,144.90 and 60,336.87

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Solution

The fourth proportional to 108,080.49, 149,144.90 and 60,336.87 is: 83,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,080.49 : 149,144.90 = 60,336.87 : x
  2. Step 2: Convert to fraction form
    108,080.49/149,144.90 = 60,336.87/x
  3. Step 3: Cross multiply
    108,080.49x = 149,144.90 × 60,336.87
  4. Step 4: Simplify right side
    108,080.49x = 8,998,935,581.49
  5. Step 5: Solve for x
    x = 8,998,935,581.49/108,080.49
  6. Step 6: Final answer
    x = 83,261.42

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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.