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Finding the Fourth Proportional to 73,059.62, 100,821.28 and 40,794.74

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Solution

The fourth proportional to 73,059.62, 100,821.28 and 40,794.74 is: 56,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,059.62 : 100,821.28 = 40,794.74 : x
  2. Step 2: Convert to fraction form
    73,059.62/100,821.28 = 40,794.74/x
  3. Step 3: Cross multiply
    73,059.62x = 100,821.28 × 40,794.74
  4. Step 4: Simplify right side
    73,059.62x = 4,112,977,399.96
  5. Step 5: Solve for x
    x = 4,112,977,399.96/73,059.62
  6. Step 6: Final answer
    x = 56,296.18

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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.