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Finding the Fourth Proportional to 79,283.63, 109,411.44 and 43,472.90

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Solution

The fourth proportional to 79,283.63, 109,411.44 and 43,472.90 is: 59,992.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,283.63 : 109,411.44 = 43,472.90 : x
  2. Step 2: Convert to fraction form
    79,283.63/109,411.44 = 43,472.90/x
  3. Step 3: Cross multiply
    79,283.63x = 109,411.44 × 43,472.90
  4. Step 4: Simplify right side
    79,283.63x = 4,756,432,589.98
  5. Step 5: Solve for x
    x = 4,756,432,589.98/79,283.63
  6. Step 6: Final answer
    x = 59,992.62

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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.