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Finding the Fourth Proportional to 79,721.19, 110,016.14 and 43,910.46

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Solution

The fourth proportional to 79,721.19, 110,016.14 and 43,910.46 is: 60,596.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,721.19 : 110,016.14 = 43,910.46 : x
  2. Step 2: Convert to fraction form
    79,721.19/110,016.14 = 43,910.46/x
  3. Step 3: Cross multiply
    79,721.19x = 110,016.14 × 43,910.46
  4. Step 4: Simplify right side
    79,721.19x = 4,830,859,095.27
  5. Step 5: Solve for x
    x = 4,830,859,095.27/79,721.19
  6. Step 6: Final answer
    x = 60,596.93

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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.