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Finding the Fourth Proportional to 439,593.17, 659,382.56 and 140,069.70

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Solution

The fourth proportional to 439,593.17, 659,382.56 and 140,069.70 is: 210,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,593.17 : 659,382.56 = 140,069.70 : x
  2. Step 2: Convert to fraction form
    439,593.17/659,382.56 = 140,069.70/x
  3. Step 3: Cross multiply
    439,593.17x = 659,382.56 × 140,069.70
  4. Step 4: Simplify right side
    439,593.17x = 92,359,517,189.34
  5. Step 5: Solve for x
    x = 92,359,517,189.34/439,593.17
  6. Step 6: Final answer
    x = 210,102.26

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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.