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Finding the Fourth Proportional to 79,768.13, 110,080.74 and 43,959.42

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Solution

The fourth proportional to 79,768.13, 110,080.74 and 43,959.42 is: 60,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,768.13 : 110,080.74 = 43,959.42 : x
  2. Step 2: Convert to fraction form
    79,768.13/110,080.74 = 43,959.42/x
  3. Step 3: Cross multiply
    79,768.13x = 110,080.74 × 43,959.42
  4. Step 4: Simplify right side
    79,768.13x = 4,839,085,483.57
  5. Step 5: Solve for x
    x = 4,839,085,483.57/79,768.13
  6. Step 6: Final answer
    x = 60,664.40

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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.