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Finding the Fourth Proportional to 354,960, 532,517.76 and 133,344

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Solution

The fourth proportional to 354,960, 532,517.76 and 133,344 is: 200,045.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,960 : 532,517.76 = 133,344 : x
  2. Step 2: Convert to fraction form
    354,960/532,517.76 = 133,344/x
  3. Step 3: Cross multiply
    354,960x = 532,517.76 × 133,344
  4. Step 4: Simplify right side
    354,960x = 71,008,048,189.44
  5. Step 5: Solve for x
    x = 71,008,048,189.44/354,960
  6. Step 6: Final answer
    x = 200,045.21

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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.