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Finding the Fourth Proportional to 260,352.33, 390,451.95 and 110,591.43

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Solution

The fourth proportional to 260,352.33, 390,451.95 and 110,591.43 is: 165,854.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,352.33 : 390,451.95 = 110,591.43 : x
  2. Step 2: Convert to fraction form
    260,352.33/390,451.95 = 110,591.43/x
  3. Step 3: Cross multiply
    260,352.33x = 390,451.95 × 110,591.43
  4. Step 4: Simplify right side
    260,352.33x = 43,180,639,496.79
  5. Step 5: Solve for x
    x = 43,180,639,496.79/260,352.33
  6. Step 6: Final answer
    x = 165,854.63

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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.