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Finding the Fourth Proportional to 101,016.60, 151,541.90 and 30,879.52

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Solution

The fourth proportional to 101,016.60, 151,541.90 and 30,879.52 is: 46,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,016.60 : 151,541.90 = 30,879.52 : x
  2. Step 2: Convert to fraction form
    101,016.60/151,541.90 = 30,879.52/x
  3. Step 3: Cross multiply
    101,016.60x = 151,541.90 × 30,879.52
  4. Step 4: Simplify right side
    101,016.60x = 4,679,541,131.89
  5. Step 5: Solve for x
    x = 4,679,541,131.89/101,016.60
  6. Step 6: Final answer
    x = 46,324.48

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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.