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Finding the Fourth Proportional to 260,924.01, 391,379.84 and 83,432.57

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Solution

The fourth proportional to 260,924.01, 391,379.84 and 83,432.57 is: 125,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,924.01 : 391,379.84 = 83,432.57 : x
  2. Step 2: Convert to fraction form
    260,924.01/391,379.84 = 83,432.57/x
  3. Step 3: Cross multiply
    260,924.01x = 391,379.84 × 83,432.57
  4. Step 4: Simplify right side
    260,924.01x = 32,653,823,523.33
  5. Step 5: Solve for x
    x = 32,653,823,523.33/260,924.01
  6. Step 6: Final answer
    x = 125,146.87

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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.