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Finding the Fourth Proportional to 101,046.75, 151,669.84 and 53,661.71

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Solution

The fourth proportional to 101,046.75, 151,669.84 and 53,661.71 is: 80,545.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,046.75 : 151,669.84 = 53,661.71 : x
  2. Step 2: Convert to fraction form
    101,046.75/151,669.84 = 53,661.71/x
  3. Step 3: Cross multiply
    101,046.75x = 151,669.84 × 53,661.71
  4. Step 4: Simplify right side
    101,046.75x = 8,138,862,211.48
  5. Step 5: Solve for x
    x = 8,138,862,211.48/101,046.75
  6. Step 6: Final answer
    x = 80,545.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.