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Finding the Fourth Proportional to 79,766.88, 110,079.01 and 43,958.17

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Solution

The fourth proportional to 79,766.88, 110,079.01 and 43,958.17 is: 60,662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,766.88 : 110,079.01 = 43,958.17 : x
  2. Step 2: Convert to fraction form
    79,766.88/110,079.01 = 43,958.17/x
  3. Step 3: Cross multiply
    79,766.88x = 110,079.01 × 43,958.17
  4. Step 4: Simplify right side
    79,766.88x = 4,838,871,835.01
  5. Step 5: Solve for x
    x = 4,838,871,835.01/79,766.88
  6. Step 6: Final answer
    x = 60,662.67

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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.