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Finding the Fourth Proportional to 79,143.44, 109,217.76 and 43,333.44

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Solution

The fourth proportional to 79,143.44, 109,217.76 and 43,333.44 is: 59,800.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,143.44 : 109,217.76 = 43,333.44 : x
  2. Step 2: Convert to fraction form
    79,143.44/109,217.76 = 43,333.44/x
  3. Step 3: Cross multiply
    79,143.44x = 109,217.76 × 43,333.44
  4. Step 4: Simplify right side
    79,143.44x = 4,732,781,249.89
  5. Step 5: Solve for x
    x = 4,732,781,249.89/79,143.44
  6. Step 6: Final answer
    x = 59,800.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.