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Finding the Fourth Proportional to 143,879.58, 215,793.24 and 38,673.94

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Solution

The fourth proportional to 143,879.58, 215,793.24 and 38,673.94 is: 58,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,879.58 : 215,793.24 = 38,673.94 : x
  2. Step 2: Convert to fraction form
    143,879.58/215,793.24 = 38,673.94/x
  3. Step 3: Cross multiply
    143,879.58x = 215,793.24 × 38,673.94
  4. Step 4: Simplify right side
    143,879.58x = 8,345,574,816.17
  5. Step 5: Solve for x
    x = 8,345,574,816.17/143,879.58
  6. Step 6: Final answer
    x = 58,003.89

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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.