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Finding the Fourth Proportional to 79,366.68, 109,525.70 and 43,557.28

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Solution

The fourth proportional to 79,366.68, 109,525.70 and 43,557.28 is: 60,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,366.68 : 109,525.70 = 43,557.28 : x
  2. Step 2: Convert to fraction form
    79,366.68/109,525.70 = 43,557.28/x
  3. Step 3: Cross multiply
    79,366.68x = 109,525.70 × 43,557.28
  4. Step 4: Simplify right side
    79,366.68x = 4,770,641,582.10
  5. Step 5: Solve for x
    x = 4,770,641,582.10/79,366.68
  6. Step 6: Final answer
    x = 60,108.87

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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.