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Finding the Fourth Proportional to 439,596.59, 659,387.65 and 140,073.12

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Solution

The fourth proportional to 439,596.59, 659,387.65 and 140,073.12 is: 210,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,596.59 : 659,387.65 = 140,073.12 : x
  2. Step 2: Convert to fraction form
    439,596.59/659,387.65 = 140,073.12/x
  3. Step 3: Cross multiply
    439,596.59x = 659,387.65 × 140,073.12
  4. Step 4: Simplify right side
    439,596.59x = 92,362,485,424.97
  5. Step 5: Solve for x
    x = 92,362,485,424.97/439,596.59
  6. Step 6: Final answer
    x = 210,107.37

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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.