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Finding the Fourth Proportional to 342,867.59, 514,335.21 and 118,198.43

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Solution

The fourth proportional to 342,867.59, 514,335.21 and 118,198.43 is: 177,309.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,867.59 : 514,335.21 = 118,198.43 : x
  2. Step 2: Convert to fraction form
    342,867.59/514,335.21 = 118,198.43/x
  3. Step 3: Cross multiply
    342,867.59x = 514,335.21 × 118,198.43
  4. Step 4: Simplify right side
    342,867.59x = 60,793,614,315.72
  5. Step 5: Solve for x
    x = 60,793,614,315.72/342,867.59
  6. Step 6: Final answer
    x = 177,309.31

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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.