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Finding the Fourth Proportional to 79,600.49, 109,850.39 and 43,790.49

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Solution

The fourth proportional to 79,600.49, 109,850.39 and 43,790.49 is: 60,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,600.49 : 109,850.39 = 43,790.49 : x
  2. Step 2: Convert to fraction form
    79,600.49/109,850.39 = 43,790.49/x
  3. Step 3: Cross multiply
    79,600.49x = 109,850.39 × 43,790.49
  4. Step 4: Simplify right side
    79,600.49x = 4,810,402,404.79
  5. Step 5: Solve for x
    x = 4,810,402,404.79/79,600.49
  6. Step 6: Final answer
    x = 60,431.82

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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.