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Finding the Fourth Proportional to 79,482.92, 109,686.89 and 43,672.01

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Solution

The fourth proportional to 79,482.92, 109,686.89 and 43,672.01 is: 60,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,482.92 : 109,686.89 = 43,672.01 : x
  2. Step 2: Convert to fraction form
    79,482.92/109,686.89 = 43,672.01/x
  3. Step 3: Cross multiply
    79,482.92x = 109,686.89 × 43,672.01
  4. Step 4: Simplify right side
    79,482.92x = 4,790,246,517.69
  5. Step 5: Solve for x
    x = 4,790,246,517.69/79,482.92
  6. Step 6: Final answer
    x = 60,267.63

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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.