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Finding the Fourth Proportional to 108,760.94, 150,091.11 and 61,015.31

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Solution

The fourth proportional to 108,760.94, 150,091.11 and 61,015.31 is: 84,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,760.94 : 150,091.11 = 61,015.31 : x
  2. Step 2: Convert to fraction form
    108,760.94/150,091.11 = 61,015.31/x
  3. Step 3: Cross multiply
    108,760.94x = 150,091.11 × 61,015.31
  4. Step 4: Simplify right side
    108,760.94x = 9,157,854,854.44
  5. Step 5: Solve for x
    x = 9,157,854,854.44/108,760.94
  6. Step 6: Final answer
    x = 84,201.69

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1.5x scale

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.