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Finding the Fourth Proportional to 75,503.80, 113,255.70 and 50,620.60

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Solution

The fourth proportional to 75,503.80, 113,255.70 and 50,620.60 is: 75,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,503.80 : 113,255.70 = 50,620.60 : x
  2. Step 2: Convert to fraction form
    75,503.80/113,255.70 = 50,620.60/x
  3. Step 3: Cross multiply
    75,503.80x = 113,255.70 × 50,620.60
  4. Step 4: Simplify right side
    75,503.80x = 5,733,071,487.42
  5. Step 5: Solve for x
    x = 5,733,071,487.42/75,503.80
  6. Step 6: Final answer
    x = 75,930.90

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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.