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Finding the Fourth Proportional to 79,729.68, 110,035.60 and 43,923.36

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Solution

The fourth proportional to 79,729.68, 110,035.60 and 43,923.36 is: 60,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,729.68 : 110,035.60 = 43,923.36 : x
  2. Step 2: Convert to fraction form
    79,729.68/110,035.60 = 43,923.36/x
  3. Step 3: Cross multiply
    79,729.68x = 110,035.60 × 43,923.36
  4. Step 4: Simplify right side
    79,729.68x = 4,833,133,271.62
  5. Step 5: Solve for x
    x = 4,833,133,271.62/79,729.68
  6. Step 6: Final answer
    x = 60,619.00

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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.