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Finding the Fourth Proportional to 79,366.70, 109,528.17 and 43,557.98

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Solution

The fourth proportional to 79,366.70, 109,528.17 and 43,557.98 is: 60,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,366.70 : 109,528.17 = 43,557.98 : x
  2. Step 2: Convert to fraction form
    79,366.70/109,528.17 = 43,557.98/x
  3. Step 3: Cross multiply
    79,366.70x = 109,528.17 × 43,557.98
  4. Step 4: Simplify right side
    79,366.70x = 4,770,825,290.66
  5. Step 5: Solve for x
    x = 4,770,825,290.66/79,366.70
  6. Step 6: Final answer
    x = 60,111.17

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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.