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Finding the Fourth Proportional to 101,249.80, 151,917.90 and 48,632.20

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Solution

The fourth proportional to 101,249.80, 151,917.90 and 48,632.20 is: 72,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,249.80 : 151,917.90 = 48,632.20 : x
  2. Step 2: Convert to fraction form
    101,249.80/151,917.90 = 48,632.20/x
  3. Step 3: Cross multiply
    101,249.80x = 151,917.90 × 48,632.20
  4. Step 4: Simplify right side
    101,249.80x = 7,388,101,696.38
  5. Step 5: Solve for x
    x = 7,388,101,696.38/101,249.80
  6. Step 6: Final answer
    x = 72,969.05

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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.