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Finding the Fourth Proportional to 101,514.63, 140,105.21 and 58,485.93

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Solution

The fourth proportional to 101,514.63, 140,105.21 and 58,485.93 is: 80,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,514.63 : 140,105.21 = 58,485.93 : x
  2. Step 2: Convert to fraction form
    101,514.63/140,105.21 = 58,485.93/x
  3. Step 3: Cross multiply
    101,514.63x = 140,105.21 × 58,485.93
  4. Step 4: Simplify right side
    101,514.63x = 8,194,183,212.27
  5. Step 5: Solve for x
    x = 8,194,183,212.27/101,514.63
  6. Step 6: Final answer
    x = 80,719.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.