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Finding the Fourth Proportional to 260,944.80, 391,570.80 and 94,711.20

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Solution

The fourth proportional to 260,944.80, 391,570.80 and 94,711.20 is: 142,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,944.80 : 391,570.80 = 94,711.20 : x
  2. Step 2: Convert to fraction form
    260,944.80/391,570.80 = 94,711.20/x
  3. Step 3: Cross multiply
    260,944.80x = 391,570.80 × 94,711.20
  4. Step 4: Simplify right side
    260,944.80x = 37,086,140,352.96
  5. Step 5: Solve for x
    x = 37,086,140,352.96/260,944.80
  6. Step 6: Final answer
    x = 142,122.55

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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.