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Finding the Fourth Proportional to 79,409.97, 109,637.04 and 49,227.55

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Solution

The fourth proportional to 79,409.97, 109,637.04 and 49,227.55 is: 67,965.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,409.97 : 109,637.04 = 49,227.55 : x
  2. Step 2: Convert to fraction form
    79,409.97/109,637.04 = 49,227.55/x
  3. Step 3: Cross multiply
    79,409.97x = 109,637.04 × 49,227.55
  4. Step 4: Simplify right side
    79,409.97x = 5,397,162,778.96
  5. Step 5: Solve for x
    x = 5,397,162,778.96/79,409.97
  6. Step 6: Final answer
    x = 67,965.81

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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.