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Finding the Fourth Proportional to 79,390.96, 109,546.20 and 45,850.48

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Solution

The fourth proportional to 79,390.96, 109,546.20 and 45,850.48 is: 63,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,390.96 : 109,546.20 = 45,850.48 : x
  2. Step 2: Convert to fraction form
    79,390.96/109,546.20 = 45,850.48/x
  3. Step 3: Cross multiply
    79,390.96x = 109,546.20 × 45,850.48
  4. Step 4: Simplify right side
    79,390.96x = 5,022,745,852.18
  5. Step 5: Solve for x
    x = 5,022,745,852.18/79,390.96
  6. Step 6: Final answer
    x = 63,265.97

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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.