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Finding the Fourth Proportional to 73,567.39, 110,352.11 and 20,976.87

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Solution

The fourth proportional to 73,567.39, 110,352.11 and 20,976.87 is: 31,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,567.39 : 110,352.11 = 20,976.87 : x
  2. Step 2: Convert to fraction form
    73,567.39/110,352.11 = 20,976.87/x
  3. Step 3: Cross multiply
    73,567.39x = 110,352.11 × 20,976.87
  4. Step 4: Simplify right side
    73,567.39x = 2,314,841,865.70
  5. Step 5: Solve for x
    x = 2,314,841,865.70/73,567.39
  6. Step 6: Final answer
    x = 31,465.60

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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.