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Finding the Fourth Proportional to 338,238.10, 507,193.53 and 124,861.42

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Solution

The fourth proportional to 338,238.10, 507,193.53 and 124,861.42 is: 187,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,238.10 : 507,193.53 = 124,861.42 : x
  2. Step 2: Convert to fraction form
    338,238.10/507,193.53 = 124,861.42/x
  3. Step 3: Cross multiply
    338,238.10x = 507,193.53 × 124,861.42
  4. Step 4: Simplify right side
    338,238.10x = 63,328,904,370.61
  5. Step 5: Solve for x
    x = 63,328,904,370.61/338,238.10
  6. Step 6: Final answer
    x = 187,231.73

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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.