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Finding the Fourth Proportional to 260,751.24, 391,051.47 and 118,517.25

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Solution

The fourth proportional to 260,751.24, 391,051.47 and 118,517.25 is: 177,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,751.24 : 391,051.47 = 118,517.25 : x
  2. Step 2: Convert to fraction form
    260,751.24/391,051.47 = 118,517.25/x
  3. Step 3: Cross multiply
    260,751.24x = 391,051.47 × 118,517.25
  4. Step 4: Simplify right side
    260,751.24x = 46,346,344,832.86
  5. Step 5: Solve for x
    x = 46,346,344,832.86/260,751.24
  6. Step 6: Final answer
    x = 177,741.61

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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.