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Finding the Fourth Proportional to 79,768.80, 110,074.95 and 43,958.97

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Solution

The fourth proportional to 79,768.80, 110,074.95 and 43,958.97 is: 60,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.80 : 110,074.95 = 43,958.97 : x
  2. Step 2: Convert to fraction form
    79,768.80/110,074.95 = 43,958.97/x
  3. Step 3: Cross multiply
    79,768.80x = 110,074.95 × 43,958.97
  4. Step 4: Simplify right side
    79,768.80x = 4,838,781,424.80
  5. Step 5: Solve for x
    x = 4,838,781,424.80/79,768.80
  6. Step 6: Final answer
    x = 60,660.08

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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.