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Finding the Fourth Proportional to 79,084.49, 109,136.48 and 43,274.49

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Solution

The fourth proportional to 79,084.49, 109,136.48 and 43,274.49 is: 59,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,084.49 : 109,136.48 = 43,274.49 : x
  2. Step 2: Convert to fraction form
    79,084.49/109,136.48 = 43,274.49/x
  3. Step 3: Cross multiply
    79,084.49x = 109,136.48 × 43,274.49
  4. Step 4: Simplify right side
    79,084.49x = 4,722,825,512.40
  5. Step 5: Solve for x
    x = 4,722,825,512.40/79,084.49
  6. Step 6: Final answer
    x = 59,718.73

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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.