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Finding the Fourth Proportional to 79,727.50, 110,023.95 and 43,917.40

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Solution

The fourth proportional to 79,727.50, 110,023.95 and 43,917.40 is: 60,606.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,727.50 : 110,023.95 = 43,917.40 : x
  2. Step 2: Convert to fraction form
    79,727.50/110,023.95 = 43,917.40/x
  3. Step 3: Cross multiply
    79,727.50x = 110,023.95 × 43,917.40
  4. Step 4: Simplify right side
    79,727.50x = 4,831,965,821.73
  5. Step 5: Solve for x
    x = 4,831,965,821.73/79,727.50
  6. Step 6: Final answer
    x = 60,606.01

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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.