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Finding the Fourth Proportional to 108,442.56, 149,650.70 and 60,695.90

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Solution

The fourth proportional to 108,442.56, 149,650.70 and 60,695.90 is: 83,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,442.56 : 149,650.70 = 60,695.90 : x
  2. Step 2: Convert to fraction form
    108,442.56/149,650.70 = 60,695.90/x
  3. Step 3: Cross multiply
    108,442.56x = 149,650.70 × 60,695.90
  4. Step 4: Simplify right side
    108,442.56x = 9,083,183,922.13
  5. Step 5: Solve for x
    x = 9,083,183,922.13/108,442.56
  6. Step 6: Final answer
    x = 83,760.33

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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.