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Finding the Fourth Proportional to 73,008, 100,751.08 and 39,474

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Solution

The fourth proportional to 73,008, 100,751.08 and 39,474 is: 54,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,008 : 100,751.08 = 39,474 : x
  2. Step 2: Convert to fraction form
    73,008/100,751.08 = 39,474/x
  3. Step 3: Cross multiply
    73,008x = 100,751.08 × 39,474
  4. Step 4: Simplify right side
    73,008x = 3,977,048,131.92
  5. Step 5: Solve for x
    x = 3,977,048,131.92/73,008
  6. Step 6: Final answer
    x = 54,474.14

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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.