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Finding the Fourth Proportional to 260,843.54, 391,265.32 and 73,856.66

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Solution

The fourth proportional to 260,843.54, 391,265.32 and 73,856.66 is: 110,784.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,843.54 : 391,265.32 = 73,856.66 : x
  2. Step 2: Convert to fraction form
    260,843.54/391,265.32 = 73,856.66/x
  3. Step 3: Cross multiply
    260,843.54x = 391,265.32 × 73,856.66
  4. Step 4: Simplify right side
    260,843.54x = 28,897,549,709.03
  5. Step 5: Solve for x
    x = 28,897,549,709.03/260,843.54
  6. Step 6: Final answer
    x = 110,784.99

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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.