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Finding the Fourth Proportional to 101,145.80, 151,718.70 and 100,562.60

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Solution

The fourth proportional to 101,145.80, 151,718.70 and 100,562.60 is: 150,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,145.80 : 151,718.70 = 100,562.60 : x
  2. Step 2: Convert to fraction form
    101,145.80/151,718.70 = 100,562.60/x
  3. Step 3: Cross multiply
    101,145.80x = 151,718.70 × 100,562.60
  4. Step 4: Simplify right side
    101,145.80x = 15,257,226,940.62
  5. Step 5: Solve for x
    x = 15,257,226,940.62/101,145.80
  6. Step 6: Final answer
    x = 150,843.90

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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.