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Finding the Fourth Proportional to 112,469.80, 168,704.70 and 29,363.80

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Solution

The fourth proportional to 112,469.80, 168,704.70 and 29,363.80 is: 44,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,469.80 : 168,704.70 = 29,363.80 : x
  2. Step 2: Convert to fraction form
    112,469.80/168,704.70 = 29,363.80/x
  3. Step 3: Cross multiply
    112,469.80x = 168,704.70 × 29,363.80
  4. Step 4: Simplify right side
    112,469.80x = 4,953,811,069.86
  5. Step 5: Solve for x
    x = 4,953,811,069.86/112,469.80
  6. Step 6: Final answer
    x = 44,045.70

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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.