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Finding the Fourth Proportional to 67,930.60, 101,803.74 and 38,333.80

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Solution

The fourth proportional to 67,930.60, 101,803.74 and 38,333.80 is: 57,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,930.60 : 101,803.74 = 38,333.80 : x
  2. Step 2: Convert to fraction form
    67,930.60/101,803.74 = 38,333.80/x
  3. Step 3: Cross multiply
    67,930.60x = 101,803.74 × 38,333.80
  4. Step 4: Simplify right side
    67,930.60x = 3,902,524,208.41
  5. Step 5: Solve for x
    x = 3,902,524,208.41/67,930.60
  6. Step 6: Final answer
    x = 57,448.69

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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.