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Finding the Fourth Proportional to 79,446, 119,169 and 29,538.66

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Solution

The fourth proportional to 79,446, 119,169 and 29,538.66 is: 44,307.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,446 : 119,169 = 29,538.66 : x
  2. Step 2: Convert to fraction form
    79,446/119,169 = 29,538.66/x
  3. Step 3: Cross multiply
    79,446x = 119,169 × 29,538.66
  4. Step 4: Simplify right side
    79,446x = 3,520,092,573.54
  5. Step 5: Solve for x
    x = 3,520,092,573.54/79,446
  6. Step 6: Final answer
    x = 44,307.99

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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.