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Finding the Fourth Proportional to 79,350.80, 109,500.44 and 43,539.92

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Solution

The fourth proportional to 79,350.80, 109,500.44 and 43,539.92 is: 60,083.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,350.80 : 109,500.44 = 43,539.92 : x
  2. Step 2: Convert to fraction form
    79,350.80/109,500.44 = 43,539.92/x
  3. Step 3: Cross multiply
    79,350.80x = 109,500.44 × 43,539.92
  4. Step 4: Simplify right side
    79,350.80x = 4,767,640,397.56
  5. Step 5: Solve for x
    x = 4,767,640,397.56/79,350.80
  6. Step 6: Final answer
    x = 60,083.08

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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.