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Finding the Fourth Proportional to 79,885.80, 110,247.75 and 45,905.29

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Solution

The fourth proportional to 79,885.80, 110,247.75 and 45,905.29 is: 63,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,885.80 : 110,247.75 = 45,905.29 : x
  2. Step 2: Convert to fraction form
    79,885.80/110,247.75 = 45,905.29/x
  3. Step 3: Cross multiply
    79,885.80x = 110,247.75 × 45,905.29
  4. Step 4: Simplify right side
    79,885.80x = 5,060,954,659.98
  5. Step 5: Solve for x
    x = 5,060,954,659.98/79,885.80
  6. Step 6: Final answer
    x = 63,352.37

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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.