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Finding the Fourth Proportional to 75,504.45, 113,344.17 and 40,512.45

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Solution

The fourth proportional to 75,504.45, 113,344.17 and 40,512.45 is: 60,815.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,504.45 : 113,344.17 = 40,512.45 : x
  2. Step 2: Convert to fraction form
    75,504.45/113,344.17 = 40,512.45/x
  3. Step 3: Cross multiply
    75,504.45x = 113,344.17 × 40,512.45
  4. Step 4: Simplify right side
    75,504.45x = 4,591,849,817.35
  5. Step 5: Solve for x
    x = 4,591,849,817.35/75,504.45
  6. Step 6: Final answer
    x = 60,815.62

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1.5x scale

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.