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Finding the Fourth Proportional to 71,245.78, 106,965.87 and 36,210.22

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Solution

The fourth proportional to 71,245.78, 106,965.87 and 36,210.22 is: 54,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,245.78 : 106,965.87 = 36,210.22 : x
  2. Step 2: Convert to fraction form
    71,245.78/106,965.87 = 36,210.22/x
  3. Step 3: Cross multiply
    71,245.78x = 106,965.87 × 36,210.22
  4. Step 4: Simplify right side
    71,245.78x = 3,873,257,685.19
  5. Step 5: Solve for x
    x = 3,873,257,685.19/71,245.78
  6. Step 6: Final answer
    x = 54,364.73

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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.