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Finding the Fourth Proportional to 103,672.76, 155,516.82 and 29,806.52

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Solution

The fourth proportional to 103,672.76, 155,516.82 and 29,806.52 is: 44,711.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,672.76 : 155,516.82 = 29,806.52 : x
  2. Step 2: Convert to fraction form
    103,672.76/155,516.82 = 29,806.52/x
  3. Step 3: Cross multiply
    103,672.76x = 155,516.82 × 29,806.52
  4. Step 4: Simplify right side
    103,672.76x = 4,635,415,205.67
  5. Step 5: Solve for x
    x = 4,635,415,205.67/103,672.76
  6. Step 6: Final answer
    x = 44,711.99

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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.