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Finding the Fourth Proportional to 260,751.22, 391,051.48 and 118,517.26

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Solution

The fourth proportional to 260,751.22, 391,051.48 and 118,517.26 is: 177,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,751.22 : 391,051.48 = 118,517.26 : x
  2. Step 2: Convert to fraction form
    260,751.22/391,051.48 = 118,517.26/x
  3. Step 3: Cross multiply
    260,751.22x = 391,051.48 × 118,517.26
  4. Step 4: Simplify right side
    260,751.22x = 46,346,349,928.54
  5. Step 5: Solve for x
    x = 46,346,349,928.54/260,751.22
  6. Step 6: Final answer
    x = 177,741.64

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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.