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Finding the Fourth Proportional to 101,345.30, 151,821.09 and 48,791.66

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Solution

The fourth proportional to 101,345.30, 151,821.09 and 48,791.66 is: 73,092.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,345.30 : 151,821.09 = 48,791.66 : x
  2. Step 2: Convert to fraction form
    101,345.30/151,821.09 = 48,791.66/x
  3. Step 3: Cross multiply
    101,345.30x = 151,821.09 × 48,791.66
  4. Step 4: Simplify right side
    101,345.30x = 7,407,603,004.11
  5. Step 5: Solve for x
    x = 7,407,603,004.11/101,345.30
  6. Step 6: Final answer
    x = 73,092.71

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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.