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Finding the Fourth Proportional to 108,727.64, 150,042.30 and 60,979.96

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Solution

The fourth proportional to 108,727.64, 150,042.30 and 60,979.96 is: 84,151.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,727.64 : 150,042.30 = 60,979.96 : x
  2. Step 2: Convert to fraction form
    108,727.64/150,042.30 = 60,979.96/x
  3. Step 3: Cross multiply
    108,727.64x = 150,042.30 × 60,979.96
  4. Step 4: Simplify right side
    108,727.64x = 9,149,573,452.31
  5. Step 5: Solve for x
    x = 9,149,573,452.31/108,727.64
  6. Step 6: Final answer
    x = 84,151.31

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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.