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Finding the Fourth Proportional to 73,479.60, 101,400.70 and 41,214.21

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Solution

The fourth proportional to 73,479.60, 101,400.70 and 41,214.21 is: 56,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,479.60 : 101,400.70 = 41,214.21 : x
  2. Step 2: Convert to fraction form
    73,479.60/101,400.70 = 41,214.21/x
  3. Step 3: Cross multiply
    73,479.60x = 101,400.70 × 41,214.21
  4. Step 4: Simplify right side
    73,479.60x = 4,179,149,743.95
  5. Step 5: Solve for x
    x = 4,179,149,743.95/73,479.60
  6. Step 6: Final answer
    x = 56,874.97

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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.