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Finding the Fourth Proportional to 73,044.26, 100,800.64 and 40,777

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Solution

The fourth proportional to 73,044.26, 100,800.64 and 40,777 is: 56,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,044.26 : 100,800.64 = 40,777 : x
  2. Step 2: Convert to fraction form
    73,044.26/100,800.64 = 40,777/x
  3. Step 3: Cross multiply
    73,044.26x = 100,800.64 × 40,777
  4. Step 4: Simplify right side
    73,044.26x = 4,110,347,697.28
  5. Step 5: Solve for x
    x = 4,110,347,697.28/73,044.26
  6. Step 6: Final answer
    x = 56,272.02

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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.