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Finding the Fourth Proportional to 350,834.31, 526,163.90 and 137,645.55

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Solution

The fourth proportional to 350,834.31, 526,163.90 and 137,645.55 is: 206,433.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,834.31 : 526,163.90 = 137,645.55 : x
  2. Step 2: Convert to fraction form
    350,834.31/526,163.90 = 137,645.55/x
  3. Step 3: Cross multiply
    350,834.31x = 526,163.90 × 137,645.55
  4. Step 4: Simplify right side
    350,834.31x = 72,424,118,717.42
  5. Step 5: Solve for x
    x = 72,424,118,717.42/350,834.31
  6. Step 6: Final answer
    x = 206,433.97

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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.