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Finding the Fourth Proportional to 74,173.98, 111,344 and 49,262.68

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Solution

The fourth proportional to 74,173.98, 111,344 and 49,262.68 is: 73,949.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,173.98 : 111,344 = 49,262.68 : x
  2. Step 2: Convert to fraction form
    74,173.98/111,344 = 49,262.68/x
  3. Step 3: Cross multiply
    74,173.98x = 111,344 × 49,262.68
  4. Step 4: Simplify right side
    74,173.98x = 5,485,103,841.92
  5. Step 5: Solve for x
    x = 5,485,103,841.92/74,173.98
  6. Step 6: Final answer
    x = 73,949.16

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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.