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Finding the Fourth Proportional to 260,682.52, 390,670.08 and 110,734.78

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Solution

The fourth proportional to 260,682.52, 390,670.08 and 110,734.78 is: 165,951.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,682.52 : 390,670.08 = 110,734.78 : x
  2. Step 2: Convert to fraction form
    260,682.52/390,670.08 = 110,734.78/x
  3. Step 3: Cross multiply
    260,682.52x = 390,670.08 × 110,734.78
  4. Step 4: Simplify right side
    260,682.52x = 43,260,765,361.38
  5. Step 5: Solve for x
    x = 43,260,765,361.38/260,682.52
  6. Step 6: Final answer
    x = 165,951.92

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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.