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Finding the Fourth Proportional to 439,596.86, 659,388.02 and 140,073.37

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Solution

The fourth proportional to 439,596.86, 659,388.02 and 140,073.37 is: 210,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,596.86 : 659,388.02 = 140,073.37 : x
  2. Step 2: Convert to fraction form
    439,596.86/659,388.02 = 140,073.37/x
  3. Step 3: Cross multiply
    439,596.86x = 659,388.02 × 140,073.37
  4. Step 4: Simplify right side
    439,596.86x = 92,362,699,750.19
  5. Step 5: Solve for x
    x = 92,362,699,750.19/439,596.86
  6. Step 6: Final answer
    x = 210,107.74

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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.