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Finding the Fourth Proportional to 79,577.98, 109,814.20 and 43,765.67

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Solution

The fourth proportional to 79,577.98, 109,814.20 and 43,765.67 is: 60,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,577.98 : 109,814.20 = 43,765.67 : x
  2. Step 2: Convert to fraction form
    79,577.98/109,814.20 = 43,765.67/x
  3. Step 3: Cross multiply
    79,577.98x = 109,814.20 × 43,765.67
  4. Step 4: Simplify right side
    79,577.98x = 4,806,092,203.64
  5. Step 5: Solve for x
    x = 4,806,092,203.64/79,577.98
  6. Step 6: Final answer
    x = 60,394.75

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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.