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Finding the Fourth Proportional to 79,721.94, 119,593.88 and 35,347.71

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Solution

The fourth proportional to 79,721.94, 119,593.88 and 35,347.71 is: 53,026.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,721.94 : 119,593.88 = 35,347.71 : x
  2. Step 2: Convert to fraction form
    79,721.94/119,593.88 = 35,347.71/x
  3. Step 3: Cross multiply
    79,721.94x = 119,593.88 × 35,347.71
  4. Step 4: Simplify right side
    79,721.94x = 4,227,369,611.28
  5. Step 5: Solve for x
    x = 4,227,369,611.28/79,721.94
  6. Step 6: Final answer
    x = 53,026.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.