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Finding the Fourth Proportional to 79,863.12, 119,710.44 and 29,910.60

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Solution

The fourth proportional to 79,863.12, 119,710.44 and 29,910.60 is: 44,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863.12 : 119,710.44 = 29,910.60 : x
  2. Step 2: Convert to fraction form
    79,863.12/119,710.44 = 29,910.60/x
  3. Step 3: Cross multiply
    79,863.12x = 119,710.44 × 29,910.60
  4. Step 4: Simplify right side
    79,863.12x = 3,580,611,086.66
  5. Step 5: Solve for x
    x = 3,580,611,086.66/79,863.12
  6. Step 6: Final answer
    x = 44,834.35

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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.