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Finding the Fourth Proportional to 260,659.84, 391,023.60 and 73,675.84

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Solution

The fourth proportional to 260,659.84, 391,023.60 and 73,675.84 is: 110,523.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,659.84 : 391,023.60 = 73,675.84 : x
  2. Step 2: Convert to fraction form
    260,659.84/391,023.60 = 73,675.84/x
  3. Step 3: Cross multiply
    260,659.84x = 391,023.60 × 73,675.84
  4. Step 4: Simplify right side
    260,659.84x = 28,808,992,189.82
  5. Step 5: Solve for x
    x = 28,808,992,189.82/260,659.84
  6. Step 6: Final answer
    x = 110,523.32

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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.