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Finding the Fourth Proportional to 73,134.75, 100,925.97 and 39,600.75

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Solution

The fourth proportional to 73,134.75, 100,925.97 and 39,600.75 is: 54,649.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,134.75 : 100,925.97 = 39,600.75 : x
  2. Step 2: Convert to fraction form
    73,134.75/100,925.97 = 39,600.75/x
  3. Step 3: Cross multiply
    73,134.75x = 100,925.97 × 39,600.75
  4. Step 4: Simplify right side
    73,134.75x = 3,996,744,106.48
  5. Step 5: Solve for x
    x = 3,996,744,106.48/73,134.75
  6. Step 6: Final answer
    x = 54,649.04

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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.