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Finding the Fourth Proportional to 71,906.80, 107,834.60 and 32,482.80

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Solution

The fourth proportional to 71,906.80, 107,834.60 and 32,482.80 is: 48,712.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,906.80 : 107,834.60 = 32,482.80 : x
  2. Step 2: Convert to fraction form
    71,906.80/107,834.60 = 32,482.80/x
  3. Step 3: Cross multiply
    71,906.80x = 107,834.60 × 32,482.80
  4. Step 4: Simplify right side
    71,906.80x = 3,502,769,744.88
  5. Step 5: Solve for x
    x = 3,502,769,744.88/71,906.80
  6. Step 6: Final answer
    x = 48,712.64

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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.