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Finding the Fourth Proportional to 101,450.77, 140,046.90 and 60,629.30

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Solution

The fourth proportional to 101,450.77, 140,046.90 and 60,629.30 is: 83,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,450.77 : 140,046.90 = 60,629.30 : x
  2. Step 2: Convert to fraction form
    101,450.77/140,046.90 = 60,629.30/x
  3. Step 3: Cross multiply
    101,450.77x = 140,046.90 × 60,629.30
  4. Step 4: Simplify right side
    101,450.77x = 8,490,944,813.94
  5. Step 5: Solve for x
    x = 8,490,944,813.94/101,450.77
  6. Step 6: Final answer
    x = 83,695.23

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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.